Muhammad Ali: Best quotes from the boxing legend

Looking back at some of Muhammad Ali’s greatest quotes.

Muhammad Ali, legendary boxer and social activist, died Friday. He was 74.

Ali leaves behind a legacy as not only one of the greatest athletes of all time but also one of the most influential. In the middle of his career, Ali was stripped of his heavyweight title and didn’t box for four years after he was arrested for refusing to join the United States military.

Ali, who was born Cassius Clay before joining the Nation of Islam, resumed his boxing career after the Supreme Court overturned his conviction in 1971.

Ali’s unique life experiences and supreme confidence made him one of the most quotable people ever. The boxer’s brilliance was not only apparent in the ring, but also in front of the microphone, where the loquacious Ali gifted the world numerous quotes that have stood the test of time.

Here are some of our favorites throughout the years:

On Sonny Liston

“The crowd did not dream when they laid down their money / that they would see a total eclipse of the Sonny.”

“I'll hit Liston with so many punches from so many angles he'll think he's surrounded.”

“Sonny Liston is nothing. The man can't talk. The man can't fight. The man needs talking lessons. The man needs boxing lessons. And since he's gonna fight me, he needs falling lessons.”

“I shook up the world! I shook up the world!”

Gallery: Ali-Liston I

Muhammad Ali vs. Sonny Liston I

AP

In the early 1960s, Sonny Liston loomed as the most fearsome fighter in the sport. He destroyed Floyd Patterson in one round to win the heavyweight title in 1962 and, here, in Las Vegas 10 months later, he again flattened Patterson in the opening round. Most boxing fans considered Liston unbeatable.

Michael Ochs Archives/Getty Images

Certainly the loud-mouthed kid from Louisville was not the guy anyone expected to beat Liston. Cassius Clay (later known as Muhammad Ali) had won the light heavyweight gold medal at the Rome Olympics in 1960 and had run up a 19-0 record as a pro. The Louisville Lip, here taunting Liston from ringside after the second Patterson fight, was a master self-promoter, but seemed an unlikely challenger for the champion.

Ira Gay Sealy/The Denver Post via Getty Images

On Nov. 5, 1963, Liston finally signed to defend his title against the upstart Clay. At the press gathering to announce the bout, the challenger, his slice of pie (figuratively and literally) finally in hand, kept a wary eye on the champion as Mrs. Liston appeared to be awaiting some new development in the horseplay that highlighted wild press conference.

The Denver Post via Getty Images

In December of 1963, Liston began training for his bout with Clay, scheduled for February 1964. Here, the reigning champ got some posed help from former heavyweight king Joe Louis.

AP

Ali turned 22 on Jan. 17, 1964 and (continuing the pastry motif) celebrated with a cake decorated with a boxing ring and a sweet tableau indeed: Sonny Liston in a horizontal position and the victorious Cassius Clay above him.

Chris Smith/Getty Images

In the build-up to the fight, Ali had dubbed the menacing Liston "The Big Bear," and he made clear his intentions with the message on his jacket. Still, most observers felt that the challenger, here at the 5th Street Gym in Miami, was in for a mauling.

Chris Smith/Hulton Archive/Getty Images

Fab Five? As a promotional stunt, somebody thought it would be fun to get Clay together with a group that was making some noise of its own. So, a week before the fight, the Beatles showed up at the 5th Street Gym. Neither really knew who the other was, but they produced some memorable images -- and, of course, each would go on to greater things.

Neil Leifer/SI

The weigh-in for the Liston bout was held in the densely packed Cypress Room at Miami Beach Convention Hall. There, just hours before he would go into the ring, Ali (then still Clay) produced one of his most memorable performances, ranting and threatening Liston and jumping about with such maniacal energy that many who saw him thought he was either terrified or having a seizure. What he was doing was convincing Liston that he would soon be fighting a crazy man -- a prospect that would frighten even Liston.

Neil Leifer/SI

Ali, here being restrained by his trainer, Angelo Dundee, was fined $2,500 for his outburst. For the challenger, the effect would be more than worth it.

AP

A change was gonna come: On Feb. 25, 1964, Cassius Clay, left, who would later became Muhammad Ali, stepped into the ring against Sonny Liston in Miami Beach, Fla. They met as the nation was on the eve of massive upheaval. Still deep in mourning over the assassination of President John F. Kennedy just three months earlier, the country would be rocked by race riots in major cities in the long, hot summer ahead. Civil rights activism was gearing up, the conflict in Vietnam was moving into U.S. headlines. The young challenger, a 7-1 underdog, represented the unsettling times ahead.

Gamma-Keystone via Getty Images

Most boxing fans expected Liston to overpower his challenger, but Clay was more than prepared for Liston's attack. Faster and more agile, Clay avoided Liston's big punches and tied the champion up in close, frustrating him from the opening bell.

Neil Leifer/SI

Clay's movement and timing had Liston lunging, and the Covention Hall crowd gasping. This was not the fight they had expected to see.

Neil Leifer/SI

Clay not only made Liston miss, he also repeatedly stung the champion with a long, lacing jab and sharp overhand rights. Liston had never before been hit so readily.

Neil Leifer/SI

Already in the opening rounds, it was clear that the challenger -- who had been declared "terrified" during the weigh-in -- was in full control of both himself and of the fight. Liston, meanwhile, was obviously frustrated.

Popperfoto/Getty Images

Putting his punches together in flashing combinations, Clay showed the ability not only to keep Liston off balance, but to hurt him as well. Suddenly, the expected mismatch was being turned on its head.

AP

By the third round, Liston's face was showing the effects of Clay's slashing punches, and the once-fearsome champion was already looking like a much older fighter, one on the way to unexpected defeat.

Neil Leifer/SI

Clay appears composed in this shot taken between rounds, but he did suffer one scare during the bout. After the fourth round, he came back to the corner complaining of a burning in his eyes. One possible explanation is that a solution applied to stop the bleeding from Liston's cuts had gotten into his opponent's eyes (by accident, or by intention), but whatever the cause, a panicked Clay called for trainer Angelo Dundee to cut the gloves off him and stop the fight. Dundee responed by sponging out Clay's eyes once more and then pushing him back out into the ring at the start of the fifth round. A near-blind Clay round out the storm and, by the end of the round, was back to battering Liston.

Neil Leifer/SI

A champion beaten. An era over. Cut, battered and humiliated, Liston stayed on his stool when the bell rang to start the seventh round. He would later claim that his left shoulder was injured and that he couldn't continue because of that, but the truth was clear on his face.

Neil Leifer/SI

Realizing that Liston had quit and that he was the winner and the new champion, Clay lept off his stool and into a wild celebration, as his handlers thronged him and a stunned crowd reacted.

AP

"I shook up the world!" Clay proclaimed, as he gestured over the ropes at the assembled press corps, virtually every member of which had predicted a Liston victory. He was right, of course -- and over the next decades, as Muhammad Ali, he would continue to it shake up, like no one before or since.

AP

A sweet moment: Still celebrating and proclaiming himself the "greatest," Clay returned to his dressing room escorted by the great Sugar Ray Robinson (in tie), and trailed by his longtime friend and handler Drew (Bundini) Brown (over Ali's right shoulder).

Bob Gomel/Time Life Pictures/Getty Images

In a move that would further shake up the world (and outrage a large portion of American sports fans), the new champion announced immediately after the Liston fight that he was joining the Nation of Islam and changing his name from Cassius Clay to Muhammad Ali. This photo, from March 1964, shows Ali together with his mentor in the conversion to Islam, Malcolm X. Ali's association with the black nationalist leader opened a new chapter in his life and would carry him far beyond the boxing ring.

On George Foreman

“I've seen George Foreman shadow boxing and the shadow won.”

“I done wrestled with an alligator, I done tussled with a whale; handcuffed lightning, thrown thunder in jail; only last week, I murdered a rock, injured a stone, hospitalized a brick; I'm so mean I make medicine sick.”

“If you were surprised when Nixon resigned, just watch what happens when I whup Foreman's behind!”

MORE:Highlights from Ali’s biggest fights | HOFFER: Ali’s legacy extended well beyond the ring

On Joe Frazier

“Joe Frazier is so ugly that when he cries, the tears turn around and go down the back of his head.”

“Frazier is so ugly he should donate his face to the US Bureau of Wildlife.”

“It will be a killer and a chiller and a thriller when I get the gorilla in Manila.”

“I always bring out the best in men I fight, but Joe Frazier, I'll tell the world right now, brings out the best in me. I'm gonna tell ya, that's one helluva man, and God bless him.”

On Floyd Patterson

“I'll beat him so bad, he'll need a shoehorn to put his hat on.”

On Vietnam

“I ain’t got no quarrel with those Vietcong….No Vietcong ever called me n-----.”

“My conscience won't let me go shoot my brother, or some darker people, or some poor hungry people in the mud for big powerful America. And shoot them for what? They never called me n-----, they never lynched me, they didn't put no dogs on me, they didn't rob me of my nationality, rape and kill my mother and father. ... Shoot them for what? How can I shoot them poor people? Just take me to jail.”

On Retirement

“Will they ever have another fighter who writes poems, predicts rounds, beats everybody, makes people laugh, makes people cry and is as tall and extra pretty as me?”

“I won't miss boxing. Boxing will miss me.”

Gallery: SI’s 100 Greatest Muhammad Ali Photos

SI's 100 Greatest Photos of Muhammad Ali

Neil Leifer

In one of the most iconic and controversial moments of his career, Ali stands over Sonny Liston and yells at him after knocking the former champ down in the first round of their 1965 rematch. Skeptics dubbed it "the Phantom Punch," but films show Ali's flashing right caught Liston flush, knocking him to the canvas. Refusing to go to a neutral corner, Ali stood over Liston and told him to "get up and fight, sucker."

Neil Leifer

At 22-years-old, Cassius Clay (Muhammad Ali) battered the heavily favored Sonny Liston in a bout that shook the boxing world. The fight ignited the career of one of sports' most charismatic and controversial figures, whose bouts often became social and political events rather than simply sports contests. At the peak of his fame, Muhammad Ali was the best known athlete in the world. Liston, one of the most feared heavyweight champions in history, was a 1-8 favorite over the young challenger known as the Louisville Lip. But Clay, here stinging the champ with a right, used his dazzling speed and constant movement to dominate the action and pile up points.

Jerry Cooke

Cassius Clay punches Zbigniew Pietrzykowski of Poland during their gold medal bout at the 1960 Rome Olympics. Clay defeated Pietrzykowski 5-0 for the light heavyweight gold medal.

Marvin E. Newman

For the 18-year-old from Louisville, here atop the medal stand after his Olympic victory, all roads led from Rome. Clay finished his amateur career with a record of 100-5 and made his professional debut two months after the Games.

Neil Leifer

Undefeated in his first 17 pro fights, Clay mugged for the camera before the start of his 1963 bout against Doug Jones in Madison Square Garden.

Neil Leifer

Trainer Angelo Dundee urged his young charge to get serious before the opening bell against Jones. Clay followed instructions and emerged from a tough fight with a unanimous decision victory. Three months later he would stop Henry Cooper and close out 1963 at 19-0.

Neil Leifer

A seemingly hysterical Clay taunted Sonny Liston during the pre-fight physical for their 1964 bout. He had consistently baited the Big Bear during the lead-up to the fight, saying he was going to "use him as a bearskin rug ... after I whup him." The Miami Boxing Commission would fine Clay $2,500 for his outburst at the physical.

Neil Leifer

"I shook up the world!" an emotional Clay hollered to ringside reporters after his shocking defeat of Liston. And he did just that, claiming the heavyweight title at age 21 after a clearly beaten Liston, complaining of a shoulder injury, failed to answer the bell for the seventh round.

Neil Leifer

Draped in shadow, the young king — now known as Muhammad Ali — stared down the camera during a photo shoot in April 1965, one month before his rematch against Sonny Liston.

Neil Leifer

As Liston lingered on the canvas and the referee, former heavyweight champ Jersey Joe Walcott, tried to control Ali, the 2,434 spectators on hand in the Lewiston, Me., hockey arena — a record low for a heavyweight championship fight — tried to make sense of what all that had happened in less than two minutes after the opening bell.

Neil Leifer

The celebration over Liston continued. In a chaotic ending, Ali was awarded a knockout when Nat Fleischer, publisher of The Ring, informed referee Jersey Joe Walcott from ringside that Liston had been on the canvas for longer than 10 seconds after Ali knocked him down. The bout remains one of the most controversial in boxing history, with many observers insisting that Liston took a dive.

Neil Leifer

Ali's second title defense came in November 1965, against former two-time heavyweight champion Floyd Patterson. During the build-up to the bout, the normally soft-spoken Patterson earned the new champ's wrath by refusing to call Ali by his Muslim name. At the weigh-in, Ali's glare made it clear that he intended Patterson to pay for the disrespect.

Neil Leifer

In cruelly efficient performance, Ali punished Patterson — who was hobbled by a painful back injury — seemingly toying with the former champ throughout the bout, hitting him at will and calling, "What's my name?" before finally winning on a 12th-round TKO.

James Drake

Capping off a five-fight campaign in 1966, Ali faced Cleveland Williams in the Houston Astrodome on Nov. 14. Known as the Big Cat, the heavily-muscled Williams was a power puncher who had racked up 51 knockouts in 71 fights. But he was also 33, barely recovered from a gunshot wound sustained the year before, and up against a young champion very much in his prime. Ali wasted little time in unleashing a withering attack.

James Drake

Float and sting: In a display of speed and combination punching unmatched in heavyweight history, Ali overwhelmed Williams from the start. The challenger, here down for the third time in round 2, would be saved by the bell before referee Harry Kessler could count him out, but it would only postpone the inevitable.

Neil Leifer

Ali dropped Williams again early in the third round, and Kessler waved the mismatch over at 1:08 of the third.

Neil Leifer

In a multiple-exposure portrait, Ali demonstrates his signature double-clutch shuffle during a photo shoot in December 1966.

Neil Leifer

Ali sits in the locker room before his February 1967 fight against Ernie Terrell. Like Patterson before him, Terrell refused to call the champion by his Muslim name. Also like Patterson, he paid a stiff price, as Ali punished Terrell for 15 ugly rounds before winning by unanimous decision.

Neil Leifer

Outside the Armed Forces Examining and Entrance Station in Houston in April 1967, Ali spoke to the press about his refusal to be inducted into military service. Among those on hand was ABC's Howard Cosell, who would be a staunch supporter of the fighter's stance. The decision cost Ali his boxing license and his heavyweight title, and he was sentenced to five years in prison but remained free pending an appeal.

Neil Leifer

In professional exile for three and a half years because of his draft case, Ali sought to return to boxing in 1970. He began with a night of exhibition bouts at Morehouse College in Atlanta, where before going into the ring, he shared a locker room laugh with actor and comedian Lincoln Perry (right), better known by his stage name of Stepin Fetchit. The friendship between the two black icons would later be examined in an acclaimed play by Will Power, Fetch Clay, Make Man.

Neil Leifer

After the Atlanta Athletic Commission at last granted Ali a license, the deposed champion went back into serious training. He was, as ever, in the capable hands of trainer Angelo Dundee, here wrapping boxing's most famous fists at the 5th Street Gym in Miami in October 1970.

Neil Leifer

With his return to the ring scheduled for Oct. 26, 1970 in Atlanta, against dangerous contender Jerry Quarry, Ali made it clear to all who would listen that he was on a mission to reclaim the title that had been stripped of him.

Neil Leifer

Reel to spiel: For the ever-loquacious Ali, even a rare moment of down time — like this afternoon in 1970 in a Miami hotel room — was a chance to do some talking.

Neil Leifer

Despite Ali's long layoff, his comeback campaign would include no easy tune-up bouts. He stopped Quarry in three rounds on Oct. 26, 1970, then, just six weeks later — an unthinkably short interlude by today's standards — took on Argentine contender Oscar Bonavena in Madison Square Garden. Here, Ali fires a right at the rugged and awkward Bonavena, who took the fight to the former champion all night.

Neil Leifer

After a long, often sloppy bout, Ali — here being held back by referee Mark Conn — produced one of the most dramatic finishes of his career, dropping Bonavena three times in the 15th and final round to automatically end the fight. The win cleared the way for a showdown with Joe Frazier, the man who had taken the heavyweight title in Ali's absence.

Neil Leifer

On the night of March 8, 1971, the eyes of the world were on a square patch of white canvas in the center of Madison Square Garden. There, Ali and Joe Frazier met in what was billed at the time simply as The Fight, but has come to be known, justifiably, as the Fight of the Century. For 15 rounds the two undefeated heavyweights battled at a furious pace, with each man sustaining tremendous punishment. In the end Frazier prevailed, dropping Ali in the final round with a tremendous left hook to seal a unanimous decision and hand The Greatest his first loss in 32 professional fights.

Neil Leifer

Ali poses with the fight poster for his upcoming fight against Jimmy Ellis during a photo shoot in July 1971. Ellis was an old friend of Ali's — both were trained by Angelo Dundee — and knew his fighting style well from many rounds of sparring.

Neil Leifer

For those sportswriters lucky enough to cover Ali on a regular basis, each day brought surprises and, more often than not, plenty of laughs. of Trainer Drew Bundini Brown helps Ali train for his fight against Ellis. Ali won the bout by technical knockout in the 12th round to claim the vacant NABF heavyweight title.

Neil Leifer

The man in the mirror stares back as Ali examines himself while training for a fight in 1972. He won all six of his fights that year.

Neil Leifer

The Louisville Lip stands next to George Foreman before Ali's fight versus Jerry Quarry in June 1972. Ali won by technical knockout in the seventh round. Foreman at the time was 36-0. Ali would not get his shot against Foreman for more than two years.

Neil Leifer

Ali throws a left hook at Bob Foster in their 1972 fight at Stateline, Nev. Although Ali knocked Foster out, Foster did leave his mark: a cut above Ali's left eye, his first as a professional.

Neil Leifer

Foster lies on the canvas after getting knocked down by Ali. Ali knocked Foster down four times in the fifth round and twice more in the seventh round before he was finally counted out after Ali knocked him down again in the eighth round.

Neil Leifer

Ali sits with sportscaster Howard Cosell before his fight with Joe Bugner in February 1973. Although unable to knock Bugner out, Ali won comfortably by unanimous decision.

Neil Leifer

Ali hits a speed bag while warming up for his bout with Bugner in Las Vegas. Ali prepared ferociously for the fight, training 67 rounds the week leading up to the fight, including six rounds the day before the fight.

Neil Leifer

In a lighter pre-fight moment, Ali poses for a portrait wearing a hat in his dressing room before the match with Bugner.

Neil Leifer

Ali plays with Sugar Ray Robinson's hair in the locker room before his bout with Bugner. The former welterweight and middleweight champion was Ali's childhood idol.

Neil Leifer

Before the fight with Bugner, Muhammad Ali enjoys a relaxed moment with a poodle at Caesars Palace Hotel. He won the fight with Bugner by unanimous decision.

Neil Leifer

Howard Cosell interviews Ali, with entertainer Sammy Davis Jr. in the middle, after his victory over Joe Bugner by unanimous decision in. Although the fight was never in jeopardy of getting away from him, Ali praised Bugner's legs and said he could be a champion in a few years.

Neil Leifer

Ali changes the diaper of his son in his bedroom during a photo shoot at the family's home in April 1973. Ali had suffered a broken jaw less than a month earlier in his fight against Ken Norton.

Neil Leifer

In the wake of his split decision loss to Norton, Ali plays with his son in his bedroom at home in Cherry Hill, N.J.

Neil Leifer

Ali kisses his daughter Jamillah outside of their home following the loss to Norton, just the second defeat of his career.

Neil Leifer

The Ali family standing outside their New Jersey home. To the right of Muhammad Ali are his twin daughters, Jamilllah and Rasheda, daughter Maryum and his wife, Khalilah, holding their son Ibn Muhammad Ali Jr.

Neil Leifer

At his training camp cabin, Ali pushes a boulder during a photo shoot in Deer Lake, Penn., in August 1973. Ali was training for his rematch against Ken Norton, who broke his jaw five months earlier.

Neil Leifer

Ali chops wood at his cabin in Deer Lake. He referred to the training camp as "fighter's heaven" and used it to prepare for fights away from the spotlight.

Neil Leifer

The fighters weigh in on the Tonight Show with Johnny Carson ahead of Ali and Ken Norton's September 1973 fight.

Neil Leifer

Johnny Carson listens to Ali on the Tonight Show three days before his rematch with Norton. Ali would avenge his earlier loss to Norton, winning a narrow split decision.

Neil Leifer

Ali poses in front of posters and magazine covers from throughout his career at his training camp cabin in Deer Lake in 1974.

Neil Leifer

Ali poses with members of his family in front of a poster from his first fight with Joe Frazier. Ali's brother, Rahman Ali; mother, Odessa Clay; and father, Cassius Clay Sr. stand behind the boxer.

Neil Leifer

Less than three weeks before his rematch with Joe Frazier on Jan. 28, 1974, Ali wraps his hands while wearing a sauna suit at his training camp cabin.

Neil Leifer

Ali holds a newspaper at his cabin in January 1974. He is pointing to a headline that reads, "Frazier On Ali, I Think He's Crazy." Ali and Frazier fought for the second time later that month with Ali winning by a unanimous decision.

Neil Leifer

Ali lies on his bed at his cabin during the January 1974 photo shoot.

Neil Leifer

His smaller incarnation stares straight back as Ali plays with a doll of himself during the same 1974 shoot at his training camp cabin.

Neil Leifer

Ali and Joe Frazier fight on the set of The Dick Cavett Show while reviewing their 1971 bout in advance of their 1974 rematch. Ali called Frazier ignorant, to which Frazier took exception. As the studio crew tried to calm Frazier down, Ali held Frazier by the neck, forcing him to sit down and sparking a fight. The television set fight amped up anticipation of their January 1974 bout.

Neil Leifer

Exploring a different side of the sport, Ali broadcasts the fight between George Foreman and Ken Norton in March 1974. Foreman won the fight by technical knockout in the second round, setting up the showdown with Ali in Zaire.

Tony Triolo

Ali jumps rope at the Salle de Congres in Kinshasa, Zaire, while training for his heavyweight title fight against George Foreman. Both Ali and Foreman spent most of the summer of 1974 training in Zaire to adjust to the climate.

Neil Leifer

While training before his fight with George Foreman, Ali kisses his mother, Odessa Clay, while his father, Cassius Clay Sr., looks on. Ali's superior strategy and ability to take a punch led him to his upset victory as he absorbed body blows from Foreman before he responded with powerful combinations to Foreman's head.

Neil Leifer

Four days before the fight, Ali holds the hand of his son Ibn in Zaire. Ali successfully courted the favor of the Zaire crowd, prompting chants of "Ali bomaye!" — translated as "Ali, kill him!"

Neil Leifer

Ali poses in front of the Le Militant statue at the presidential complex that was the site of Ali's January heavyweight title bout with Foreman. The fight was originally set for a month earlier, but Foreman suffered a cut near his eye during training, forcing a delay.

Neil Leifer

Ali stands against the railing on the River Zaire watching the sunset four days before the Rumble in the Jungle. The fight was sponsored by Zaire to achieve the $5 million purse promoter Don King had promised both Ali and Foreman.

Neil Leifer

Before employing his famous rope-a-dope strategy against Foreman, Ali makes a face at the camera. Ali allowed Foreman to throw many punches but only into his arms and body, and when Foreman tired himself out from the mostly ineffective punches, Ali took control of the fight.

Neil Leifer

Ali points before his bout with Foreman. The victory over his favored opponent made him the heavyweight champion of the world for the first time since he was stripped of his titles in 1967.

Neil Leifer

Ali stares at George Foreman during the Rumble in the Jungle. Ali earned his shot at the heavyweight title by defeating Joe Frazier in January 1974, avenging a loss three years earlier.

Tony Triolo

Foreman lies down on the canvas as Ali stands in the background during the Rumble in the Jungle. Ali knocked Foreman down with a five-punch combination in the eighth round, and referee Zack Clayton counted him out.

Neil Leifer

Big George stares at the ceiling as referee Zack Clayton counts him out in the eighth round. The victory made Ali, once again, the heavyweight champion of the world.

Neil Leifer

Ali poses for a portrait after being selected as the Sports Illustrated Sportsman of the Year in 1974. Ali wore a dashiki, a men's garment widely worn in West Africa. He also brought the walking stick given to him by Zaire's president.

Neil Leifer

This time Ali wears a tuxedo, but keeps the walking stick, during the November photo shoot for Sports Illustrated's Sportsman of the Year.

Neil Leifer

Ali talks with Howard Cosell outside of the United Nations Headquarters for a segment on the Wide World of Sports. Later that day, Ali held a press conference to announce that he would donate part of the proceeds from his fight against Chuck Wepner to help Africans in the Sahel drought.

Neil Leifer

Ali talks with Reverend Jesse Jackson outside of the United Nations Headquarters before a press conference to announce that he would donate part of the proceeds from his fight against Chuck Wepner to help Africans in the Sahel drought.

Neil Leifer

Ali stands with trainer Angelo Dundee, assistant trainer Wali Muhammad, physician Dr. Ferdie Pacheco and assistant trainer Drew Bundini Brown before his bout with Ron Lyle in May 1975. Ali won the fight by technical knockout in the 11th round.

Neil Leifer

Along with Don King and Joe Frazier, Ali sat for a portrait leading up to the Thrilla in Manila. Ali verbally abused Frazier during the buildup to the fight, telling the media that "it will be a killa and a thrilla and a chilla when I get the gorilla in Manila."

Neil Leifer

Ali points at the camera with Don King and his training staff behind him before the weigh-in for the Thrilla in Manila in October 1975. Philippine president Ferdinand Marcos offered to sponsor the bout and hold it in Metro Manila to divert attention from the turmoil in the country that had forced the imposition of martial law in 1972.

Neil Leifer

Wrapping up Joe Frazier proved more difficult than Ali expected, having thought Frazier would represent an easy payday and be unable to live up to his billing. The fight turned out to be a brutal affair.

Neil Leifer

Frazier faces an Ali right hook in their fight in Quezon City, Philippines. The two fighters traded vicious blows during their 14 rounds. "Man, I hit him with punches that'd bring down the walls of a city," Frazier said. Ali withstood the blows to win by TKO in the 15th round.

Neil Leifer

The third fight between Ali and Frazier, Ali won the bruising battle between the two powerful punching heavyweights when Frazier's trainer, Eddie Futch, stopped the fight before the 15th round.

Neil Leifer

A back and forth exchange, Ali controlled the early rounds of the Thrilla in Manila before Frazier fought back with powerful hooks. Ali finished strong, regaining momentum in the later rounds.

Neil Leifer

Ali speaks to the press after winning the Thrilla in Manila bout with Frazier.

Tony Triolo

Ali holds a drinking concoction given to him by Dick Gregory, an advocate of a raw fruit and vegetable diet, in 1976.

Tony Triolo

Before his 1976 fight against Ken Norton at Yankee Stadium, Ali watches a fight on television from his hotel room. A police strike at the time of the fight created a dangerous environment outside the stadium that all but eliminated walk-up sales.

Jerry Cooke

Norton takes a right hook during the heavyweight title fight against Ali. The bout, which Ali won by a unanimous, but controversial, decision, was the last boxing match at Yankee Stadium until 2010.

Neil Leifer

Ali makes a face during his fight with Earnie Shavers in 1977 at Madison Square Garden. Hurt badly by Shavers in the second round, Ali rebounded and outboxed Shavers throughout to build a lead on points before Shavers came on again in the later rounds. Seemingly exhausted going into the 15th and final round, Ali remained victorious by producing a closing flurry that left Shavers wobbling at the bell and the Garden crowd once again in delirium over his Ali magic.

Neil Leifer

Ali squares off with Leon Spinks at the Las Vegas Hilton Hotel in February 1978. Spinks won the fight in a split decision, ending Ali's 3.5-year reign as the heavyweight champion. It was the only time in Ali's career that he lost his championship title in the ring.

Neil Leifer

Leon Spinks took center stage over Ali at the press conference after their fight. The victorious Spinks and his gap-toothed grin were featured on the Feb. 19, 1978 cover of Sports Illustrated.

Neil Leifer

Ali lands a straight right hand to the head of Spinks in the rematch of their title bout in 1978. Ali won on a 15 round decision.

Lane Stewart

Don King pulled the strings again when Ali faced Larry Holmes before their November 1980 fight. King became a key figure in Ali's career, promoting his biggest fights, the Thrilla in Manila and the Rumble in the Jungle.

John Iacono

Ali points at Larry Holmes before their bout at Caesars Palace in 1980.

John Iacono

Ali grapples with Holmes during their bout in 1980. Trainer Angelo Dundee stopped the fight in the 11th round, marking the fight as Ali's only career loss by knockout.

John Iacono

Drew Bundini Brown leans in to speak to Ali, who returned to fight Holmes after a brief retirement. By this time, Ali had already begun developing a vocal stutter and trembling hands and taken thyroid medication to lose weight that left him tired and short of breath.

John Iacono

Ignoring pleas for his retirement, Ali stretches before a fight against Trevor Berbick in Nassau, Bahamas. Ali lost to Berbick in a unanimous decision and retired after the bout, the 61st of his career.

Peter Read Miller

Ali pretends to spar with artist LeRoy Neiman at his home in Los Angeles. Neiman met Ali in 1962 and made many paintings and sketches from throughout Ali's life.

Neil Leifer

Cake in hand, Ali poses for a 50th birthday portrait in 1991. Although diagnosed with Parkinson's syndrome seven years earlier, Ali was still active, traveling to Iraq during the Gulf War to meet with Saddam Hussein in an attempt to negotiate the release of American hostages.

Neil Leifer

The same year, Ali stands atop of the Sonny Liston rock at his old training camp cabin. Ali and his father painted the names of famous boxers he admired on 18 boulders at the camp.

Peter Read Miller

Ali carries the Olympic torch inside Centennial Olympic Stadium at the 1996 Atlanta Olympics. Despite trembling hands, Ali had the honor to light the Olympic flame in the stadium.

Neil Leifer

Husband and wife pose for a portrait during a photo shoot in 1997. Muhammad and Lonnie married in 1986 and have an adopted son together, Asaad Amin Ali.

Neil Leifer

Ali messes around with actor Billy Crystal during a photo shoot in 2000. Crystal's impression of Ali was notorious, and he performed at a tribute to the boxer on his 50th birthday in December 1991.

Neil Leifer

Ali lies on the canvas as his son, Assad Amin Ali, stands over him invoking memories of Ali's victory over Sonny Liston during a photo shoot in the gym at his farm on Kephart Road near Berrien Springs in 2001.

Walter Iooss Jr.

Fierce rivals in the ring, Ali and Joe Frazier pose for a portrait in the boxing robes they wore the night of their first bout at Frazier's Gym in 2003. Ali said after Frazier's death in 2011 that he was "a great champion."

Neil Leifer

Ali takes a punch from his daughter Laila Ali while sparring before her fight against Erin Toughill in 2005. Laila retired from her own successful boxing career with a professional record of 24-0.

Walter Iooss Jr.

Ali poses with his fists up for a portrait in 2005.

Neil Leifer

Ali poses with an extended punch in a 2012 photo shoot at his home in Paradise Valley, Ariz., to mark his 70th birthday.

Neil Leifer

Ali sits in front of a 70th birthday cake in January 2012 at his Arizona home. Later that year he appeared at the opening ceremonies for the 2012 Olympics in London to escort the Olympic flag into the stadium, 52 years after he won gold in Rome.

Wisdom

“I hated every minute of training, but I said, ‘Don’t quit. Suffer now and live the rest of your life as a champion.'”

“He who is not courageous enough to take risks will accomplish nothing in life.”

“A man who views the world the same at 50 as he did at 20 has wasted 30 years of his life.”

“Only a man who knows what it is like to be defeated can reach down to the bottom of his soul and come up with the extra ounce of power it takes to win when the match is even.”

“At home I am a nice guy: but I don’t want the world to know. Humble people, I’ve found, don’t get very far.”

“Impossible is just a big word thrown around by small men who find it easier to live in the world they’ve been given than to explore the power they have to change it. Impossible is not a fact. It’s an opinion. Impossible is not a declaration. It’s a dare. Impossible is potential. Impossible is temporary. Impossible is nothing.”

“Float like a butterfly, sting like a bee.”

On How He Wants To Be Remembered

“I'd like for them to say he took a few cups of love, he took one tablespoon of patience, teaspoon of generosity, one pint of kindness. He took one quart of laughter, one pinch of concern, and then, he mix willlingness with happiness, he added lots of faith, and he stirred it up well, then he spreads it over his span of a lifetime, and he served it to each and every deserving person he met.”

– Rohan Nadkarni