Muhammad Ali — "When you are as great as I am, it is hard to be humble."

"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, hospitalised a brick; I'm so mean I ma…"

"I'm a poet, I'm a writer, I'm a fighter."

"I'm a baaad man, and I'm gonna whip him."

"Cassius Clay is a slave name. I didn't choose it and I don't want it. I am Muhammad Ali, a free name – it means 'beloved of God,' and I insist that people use it when they speak to me and of me."

"A man who views the world the same at fifty as he did at twenty has wasted thirty years of his life."