I have been recently diagnosed with Sjogren's Syndrome, an autoimmune disease which is an ongoing medical condition that affects my energy level and causes fatigue and joint pain.

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.

The ultimate goal of education is to gain wisdom from experiences.

It’s not good idea to always dance with the day’s tune.

I wish we hadn't used all the keys on the keyboard.

America has never seen itself as a national state like all others, but rather as an experiment in human freedom and democracy.

If you listen to 'The Revolution Will Not Be Televised,' by Gil Scott-Heron, that album is dripping with rage.

A single line in the Bible has consoled me more than all the books I ever read besides.

The society in which we live is the result of our psychological state.

Press bravely onward! - not in vainYour generous trust in human kind;The good which bloodshed could not gainYour peaceful zeal shall find.

I love going out of my comfort zone—I live to go out of my comfort zone. Obviously, you have quieter years than others—you don’t go jumping out of a plane every day.

Violence against women is an appalling human rights violation. But it is not inevitable. We can put a stop to this.