If you want to be obsessed to be your best, you must get ride of the negative things that are weighing you down.

Evil lurks where disappointment lodges.

Don't let any opportunity lead you away from serving God. That's a price that's too high to pay.

There's never been a great fight without the writers taking on and finding an identity for it. That's probably what has happened boxing. Writers are not writing about us big boys anymore and I tell you right, however you feel, take something, find it, and use it because American needs something to read about.

The Rope a Dope would not have existed without the Big Dope.

Filling a need is not merely good business; it's a basic attitude towards life. If you see a need, do whatever you can to meet that need.

In boxing, I had a lot of fear. Fear was good. But, for the first time, in the bout with Muhammad Ali, I didn't have any fear. I thought, "This is easy. This is what I've been waiting for". No fear at all. No nervousness. And I lost.