I am not playing Wimbledon because I am allergic to grass.

If I don't practice the way I should, then I won't play the way that I know I can.

If you lose, it hurts, but as long as you have fought hard, you can still feel good about yourself.

If you become great, then you can become happy. If you're happy first, it's much more difficult to be great.

He's a haircut and a forehand.

In tennis you move a lot. Golf you dont. In tennis, you can have a bad half-hour, but you cant in golf. You can lose the first set in tennis and still win.

If you go to school and practice for five days a week, it still gives you two days you can go and see your friends, you can go to the movies, you do whatever you like to do.

Once you win, you have no doubt that you can win. So you have gone through it once, and you can do it again.

I was between 2 and 3 in the world for two, three years. That's not exactly where I wanted to be.

I believe the brain is like a muscle - like any other it can be improved.

Too many people asking too many questions in tennis. Golf is better.

Being dogmatic and close-minded are not virtues.

If you're gonna be a failure at least be one at something you enjoy.

It is said that a wise man who stands firm is a statesman and a foolish man who stands firm is a catastrophe.

The woman I love she got a prize fighter nose, cauliflower ears and a run in her hose.

It is given to us to live for the most part under the guidance of mathematics ... It is impossible to distinguish from other living creatures anyone who does not understand how to quantify.

The secret of all power is - save your force. If you want high pressure you must choke off waste.

doubts, like facts, are stubborn things.

Yesterday I had a Shaker visitor, and today a Catholic; and the more I see and hear, the less do I care about church doctrines.

And although she was sometimes dissatisfied with herself, she felt unable to go beyond her own limitations. Books were safer.

Of course, it's always bad to lose, of course it's always a hardship when you lose to yesterday's miners or yesterday's tractor drivers. But life is life. It'll surely go on.