Workout. Lead a balanced life and try to have fun. It's what you make it.

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.

We are alone by birth, but we conceal the truth from ourselves till death.

You're hung up on something that's never going to love you back.

Indifference and inaction must always pay a penalty.

My message is that happiness is the first principle of life. But you must choose it. We all have pain, but suffering is a choice. You can be happier if you make some changes in your life.

Human intelligence may not be the best trick nature has to offer.

Wisdom is seldom gained without suffering.

I want to control our own energy by developing oil and natural gas but also the energy sources of the future.

In poor countries, officials receive explicit bribes; in D.C. they get the sophisticated, implicit, unspoken promise to work for large corporations

In English we say 'we are' but it's proper to say 'we are becoming' because things are becoming.

To believe in God for me is to feel that there is a God, not a dead one, or a stuffed one, who with irresistible force urges us towards more loving.