“I can’t stay No. 1 for fifty years, you know. We’ll see what happens.”

My game is a lot about footwork. If I move well, I play well.

My family is the thing I miss most on the tour.

I always knew I had something special.

Confidence? Are you kidding me? I mean, please. Look, some players grow up and play like that. I remember losing junior matches. Just being down 5-2 in the third, and they all just start slapping shots.

It is always in my mind still that I can crush anybody. That’s not an issue. But I think that is the same for most athletes. If you don’t believe you can win tournaments anymore, then you can’t do it.

You always want to win. That is why you play tennis, because you love the sport and try to be the best you can at it.

I always had the dream that, once I became No 1 in the world, that if I had a child I hoped I would have it early enough so the child can see me playing.

I have a very strong opinion. I’m absolutely against it. I’m against the challenge system. I’m for the way it is right now. Don’t change that.

I have learnt to be even more patient.

I am thinking more and more about what I want to and can do after my days as an active athlete. Thoughts like family and marriage also cross my mind more and more often.

One or two years ago, I didn’t know who I was on court and I used to swear a lot. But now I’ve learned how to cope and can therefore win 10 matches in a row. I want to be remembered as a good player rather than an idiot on court.

I’m playing great tennis. I’m enjoying the tour, having fun with the fans off the court. I’m loving it now.

I’m proud to be a symbol like the army knife or the mountains.

The nicer the point, the more — the better I feel, the more excited I get. But I never play that my opponent looks stupid. I think that is wrong. I have too much respect for every opponent I play.

What I think I’ve been able to do well over the years is play with pain, play with problems, play in all sorts of conditions.

Clearly, when you win everything, it’s fun. That doesn’t necessarily mean you love the game more.

Peace is a daily, a weekly, a monthly process, gradually changing opinions, slowly eroding old barriers, quietly building new structures.

I want the world to be better because I was here.

It’s only in times of change that someone can be clear of what he has and wants, and what he needs to give up.

It is better to change an opinion than to persist in a wrong one.

When you change your thinking, you change actions, when you change your action you change your future.

Hurt’s a reason to change, but all the hurt in the world don’t change facts.

Make every effort to change things you do not like. If you cannot make a change, change the way you have been thinking. You might find a new solution.

A truly compassionate attitude toward others does not change even if they behave negatively or hurt you.