I don't know. Haven't I always been mature?

That's when you've got to grit your teeth and hang in there and try and find a way to win when you're not playing your best tennis - that's what I can be proud of

Even when I was No. 1 in the world, I was taking it one match at a time. I never was a player to look too far ahead, the way draws can pan out.

When I go out to play, I still believe I'm as good as anyone out there. I don't have to prove anyone wrong. I know what I've done and how well I can play.

I'm fortunate: I can play as long as I want to play. There's no coach or trainer who is going to say to me that I'm dropped or sacked, it's time to move on. I can play as long as I want to play.

Matches are won and lost so many times in the locker room.

When I was a kid in Adelaide, I dreamed of becoming No. 1 in the world, winning a grand slam and the Davis Cup for Australia.

I was lucky enough to win the Davis Cup in my first year in 1999. I won my first slam at the U.S. Open in 2001 and became world No. 1 later that year. By the age of 20, I'd done it all.

I'm not a guy who needs to read motivation books.

Everyone has to call 'time' at some stage.

That's what you do all the hard work for, to play in situations that put your body through gruelling times. If you're not up to it, pull out.

the courage it took to get out of bed eachmorningto face the same thingsover and overwasenormous.

Whenever you feel like criticzing any one, " he told me, "just remember that all the people in this world haven´t had the advantages that you've had.

Zen does not confuse spirituality with thinking about God while one is peeling potatoes. Zen spirituality is just to peel the potatoes.

All art is the expression of one and the same thing- the relation of the spirit of man to the spirit of other men and to the world.

A cat is never vulgar.

It's not about battling the original artists when I record these songs, it's about paying tribute to them.

Hair brings one’s self-image into focus; it is vanity’s proving ground. Hair is terribly personal, a tangle of mysterious prejudices

I go where the story leads. And, sometimes, it is a little bit outrageous. And I relish that. I sort of want to be as much on the edge as I can.

The Doctor: 'You know when grown-ups tell you everything's going to be fine, but you really think they're lying to make you feel better?' Amelia: 'Yeah...' The Doctor: 'Everything's going to be fine.

A good professional athlete must have the love of a little boy. And the good players feel the kind of love for the game that they did when they were Little Leaguers.