As long as we're fit, we just have so much to give on the court.

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.

Ignorance and fanaticism is ever busy and needs feeding. Always it is feeding and gloating for more.

You can feel like, 'I look really bad', but to other people you can be really gorgeous.

If you know how to cheat, start now.

There’s nothing like a good ol’ film light in a fogged up studio.

The neural network is this kind of technology that is not an algorithm, it is a network that has weights on it, and you can adjust the weights so that it learns. You teach it through trials.

Men cannot live without mystery. He has a great need of it.

I want to talk to a nation, not to a select committee.

Man is rotten with perfection.

The people accusing me of being productive don't know how hard it is for me to just bend my elbow sometimes.

Christianity is not a purely intellectual, internal faith. It can only be lived in community.