First of all, in any sport where you can measure distance, height speed and all of that, you see how athletes have changed their sport and made it better. I believe, with every generation, the sport has improved. Certainly, in the men's game, that has been the case. I think that I played Pete [Sampras] at his best, I played Roger [Federer] at his best.. I believe wholeheartedly that Roger and [Rafael] Nadal have pushed the game much further than myself or Pete ever did. Their options on the tennis court are considerably more than ours.

Remember this. Hold on to this. This is the only perfection there is, the perfection of helping others. This is the only thing we can do that has any lasting meaning. This is why we're here. To make each other feel safe.

But, I would say when I was four years old and I was at the Alan King Tennis Tournament and I was hitting with all the pros that would come to town. They would get me on the court or take notice and that stayed with me.

I feel old when I see mousse in my opponent's hair.

In tennis you're on an island. Of all the games men and women play, tennis is the closest to solitary confinement.

It means a lot to you, to be out there. The highs are pretty high, and the lows are pretty low. You know, it's easy to feel like you let the team down. I mean, at the end of the day we still got to figure out a way to get through the tie.

Hate brings me to my knees, love gets me on my feet.