Ain't no reason for me to kill nobody in the ring, unless they deserve it.
Comment after the match with Jimmy Ellis was stopped by the referee in the twelfth round - July 1971.
I'm retiring because there are more pleasant things to do than beat up people.
Quoted in Secrets of Power Persuasion for Salespeople - 2003, by Roger Dawson
Joe Frazier is so ugly that when he cries, the tears turn around and go down the back of his head.
Quoted in "Ali's Quotes" at BBC Sport : Boxing - 2007.
Quoted in Redemption Song: Muhammad Ali and the Spirit of the Sixties - 1999, by Mike Marqusee. Also quoted in the International Socialist Review Issue 33 - January–February 2004.
It's just a job. Grass grows, birds fly, waves pound the sand. I beat people up.
Quoted in "Ali's Quotes" at BBC Sport : Boxing - 2007.
That's the only way you gonna save this sucker. He's doomed.
Comment prior to the "Rumble in the Jungle" about George Foreman prior to the fight, when referee Clayton warned Ali that if he didn't stop talking he would stop the fight - 30 October 1974.
A poem about his match with George Foreman, known as the Rumble in the Jungle - 1974.
Frazier is so ugly that he should donate his face to the US Bureau of Wildlife.
Quoted in "Ali's Quotes" at BBC Sport : Boxing - 2007.
Quoted in "Muhammad Ali Defends His Religion" by Lisa L. Colangelo and Clem Richardson in New York Daily News - 21 September 2001.
If Ali says a mosquito can pull a plow, don't ask how. Hitch him up.
Quoted in "Muhammad Ali" by George Plimpton in "The TIME 100" in TIME - 1999.