I certainly don't lose any sleep if I lose a tennis match.

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.

Besides, if I am truly immortal, I am my own grandchild, my own descendant, my own dynasty. I am not obliged to live on through what I pass down to others.

Let’s get right on top of the bottom line: You must live your personal values at work.

The disgrace of one's people brings sorrow to the Nobel minded.

I think if my eight-year-old self could see me at the Royal Albert Hall winning a prize for playing the Doctor on telly, he would need a stiff shot of Irn-Bru.

Most people think everybody feels about them much more violently than they actually do; they think other people's opinions of them swing through great arcs of approval or disapproval.

There has been enough blood in the Balkans. Serbia is offering its hand. Let us turn to the future and not deal with the past.

It is certain that the study of human psychology, if it were undertaken exclusively in prisons, would also lead to misrepresentation and absurd generalizations.

I feel really privileged to be an actor, to be paid to do something I love

The best time to do something significant is between yesterday and tomorrow.