People who are interested with me have for sure gotten older over the years, for example, grandparents are coming up to me telling me they grew up watching me.

You have to understand who you are and figure out a way to communicate it. It might be in a different industry, but it's about what pumps the blood through your veins, what makes you excited, what pushes your buttons. And then discovering the best way to communicate that, no matter how big or small; it's what you stand for, what you believe in, and what reflects who you are.

I question myself every day. That's what I still find motivating about this. I don't have the answers, I don't pretend that I do just because I won the match. Just keep fighting and maybe something good happens.

My accomplishments do not live up to my tennis game. Most people have to work really hard and win some big matches, and then they get money and popularity. For me it has been the reverse of everybody else. The exact opposite.

If you don't practice you don't deserve to win.

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.

Tennis was always sort of a - a learning. It was a vehicle for me to discover a lot about myself. And the things that I sort of discovered at times I not only didn't want to see it for myself but I certainly didn't want millions of people to see it.