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.

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.

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.

I'm one injury away from hanging up the racket at any time.

Every morning the sun rises to wake you up with a beautiful message of peace.

When your strength goes down, remember God is up to uplift you!

When we become too glib in prayer we are most surely talking to ourselves.

I think the thing that I always try to do - because it piques my interest - is to play really different parts all the time.

When women stops blushing, she has lost the most powerful weapon of charm.

My favorite charity is the Womens Refugee Commission and the Nomi network.

Stars don't sit still, they twinkle

You don't have to worry about being a number one, number two, or number three. Numbers don't have anything to do with placement. Numbers only have something to do with repetition.

But you, oh gardener, poet that you be / Though unaware, now use your seeds like words / And make them lilt with color nicely flung.

Power is not happiness. Security and peace are more to be desired than a name at which nations tremble.