It's lack of faith that makes people afraid of meeting challenges, and I believe in myself.

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've seen George Foreman shadow boxing, and the shadow won.

The fight is won or lost far away from witnesses - behind the lines, in the gym, and out there on the road, long before I dance under those lights.

Old age is just a record of one's whole life.

Age is whatever you think it is. You are as old as you think you are.