I contribute my best in my sport and I also have a ton of respect for myself and my family.

Some people say I have attitude - maybe I do... but I think you have to. You have to believe in yourself when no one else does - that makes you a winner right there.

I don't focus on what I'm up against. I focus on my goals and I try to ignore the rest.

Just believe in yourself. Even if you don't, pretend that you do and, at some point, you will.

My motto is: I'm alive, so that means I can do anything.

In my mind, I'm always the best. If I walk out on the court (and) I think the next person is better, I've already lost.

Of course, I want to be number one. But being happy and healthy is the most important thing.

Tennis is mostly mental. Of course, you must have a lot of physical skill, but you can't play tennis well and not be a good thinker. You win or lose the match before you even go out there.

When you lose, you're more motivated. When you win, you fail to see your mistakes and probably no one can tell you anything.

In the sports arena I would say there is nothing like training and preparation. You have to train your mind as much as your body.

If I cared deeply about what people thought of me, I probably would have never made it out of Compton, California.

Higher you step up to the ladder of success.. lesser you need to speak about yourself.. your deeds should do so.

Sarcasm is a manifestation of anger, and anger can make you the puppet of your opponents.

When the economy of a country is based fundamentally on the principles of truth and honesty, that nation experiences economic stability.

You're not really drinking coffee unless you drink it black, don't you think? Oh, no? You like to monkey with it?

At the end of the day it's not a weight contest, it's a visual contest. And it doesn't matter what you say you weigh, if you don't look that big then you don't look that big.

Honesty is the precondition for genuine scientific and scholarly work.

Compassion gives us a common ground to stand on regardless of your faith background. It gives us a chance to stand shoulder-to-shoulder rather than go fist-to-fist with somebody.

I talk about very serious human affairs but with a lightness of heart.

As a military child I first learned how to deal with different types of people and how to deal with order.

God will not make you do something you don't want to do - He will just make you wish you had.