Here are ten of Muhammad Ali's greatest quotes:

“Floats like a butterfly and sting like a bee, his hands can’t hit what his eyes can’t see”

“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 make medicine sick.”

“I'm so fast that last night I turned off the light switch in my hotel room and got into bed before the room was dark.”

“Superman don't need no seatbelt.”

“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 people use it when people speak to me and of me.”

“Joe Frazier is so ugly that he should donate his face to the US Bureau of Wildlife. He is so ugly that when he cries, the tears turn around and go down the back of his head.”

“It's just a job. Grass grows, birds fly, waves pound the sand. I beat people up.”

“I am the astronaut of boxing. Joe Louis and Dempsey were just jet pilots. I'm in a world of my own.”

“I'm not the greatest; I'm the double greatest. Not only do I knock 'em out, I pick the round.”

“If you even dream of beating me you'd better wake up and apologise.”