I have sometimes played my best Davis Cup matches away from home when you stay in the moment a bit more. But it is tough when half the crowd are spitting on you.

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.

May youalways haveopenbreezy spacesin your mind.

May you occupy your mind with positive words.

But when I was selected, after my very first tour of squadron duty, to become one of the youngest candidates for the test pilot school, I began to realize, maybe you are a little bit better.

Anyone that can pull you down is already below you!

Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.

Australia's not so bad with me, really, people are pretty cool with me at home, but in England it feels a little bit scary.

I play Irish popular music, yeah? Calling it folk is like putting it in a box. It's a living tradition, you know?

Indeed it is better to postpone, lest either we complete too little by hurrying, or wander too long in completing it.

There's nothing more boring than unintelligent actors, because all they have to talk about is themselves and acting. There have to be other things.

My sister and I both benefited hugely from the great security that our parents had given us, and then we went off and squandered it all rushing around in showbiz.