Heroes have a rough time because they stand up when they ought not to, they speak when they ought not to; they always have to go that extra mile.

The question isn't at what age I want to retire, it's at what income.

The boxing promotion part is really interesting, because I got the chance to do something with my sons. They carry their own weight, and I get a chance to listen to them and see what they have on their minds. I don't have to hand out things to do, and now they have things for me to do. It's an amazing privilege to get the opportunity to work with your children.

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

Don't try to reinvent the wheel. Just learn from the guys who have already done it well. You need a mentor, a seasoned coach who is willing to share his wisdom and experience with you. Ask someone who has already been successful to guide you.

When I was a kid in Houston, we were so poor we couldn't afford the last 2 letters, so we called ourselves po'.

Many people fail not so much because of their mistakes; they fail because they are afraid to try.