If I said I would knock out Sonny Liston in 1 minute and 49 seconds of the first round, that would hurt the gate.

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

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

Life is a gamble. You can get hurt, but people die in plane crashes, lose their arms and legs in car accidents; people die every day. Same with fighters: some die, some get hurt, some go on. You just don't let yourself believe it will happen to you.

I said I was 'The Greatest,' I never said I was the smartest!

My trainer don't tell me nothing between rounds. I don't allow him to. I fight the fight. All I want to know is did I win the round. It's too late for advice.