After you work out, you have your dog with you. There's no better companion. You've got to have a friend. I didn't like opponents who had dogs with them. Because you know they had a little edge. They have a friend

Excellence isn't achieved without inspiration and perspiration. You've got to have both.

I'm the world heavyweight champion. I consider myself a citizen of the whole world.

There's more to boxing than hitting. There's not getting hit, for instance.

A hero is someone right who doesn't change.

As bad as your situation may be, someone else always has it worse than you.

You have to keep your goal in mind and never lose sight of it. I envisioned myself winning the heavyweight title for ten years before I actually captured it. If you're not driven to do your best, you'll never reach the level of excellence in your life.