If you learn to sell, it's worth more than a degree. It's worth more than the heavyweight championship of the world. It's even more important than having a million dollars in the bank. Learn to sell, and you'll never starve.

You may have even an ex-wife or an ex-husband, but you can never have ex-children.

People are hurt in love affairs and never recover, more than a boxing match.

In 1973 I became heavyweight champion of the world with 38 victories, no defeats as a professional. You get to a point where you think you cannot lose. I felt like I had the greatest power with my fists, I was the strongest man in the world.

I had a couple of million dollars' worth of... stock once. And now it's not worth much more than wallpaper. I guess I just wasn't born to be rich.

Oh, there's nothing more dangerous in life at getting hurt at than love itself. People are hurt in love affairs and never recover, more than a boxing match.