I don't like to talk too much, I prefer to let my racket talk.

The key to success is to focus on goals, not obstacles.

What I remember above all about Harvard was being in the midst of so much energy and intelligence. It could be exhilarating, intimidating, sometimes even discouraging, but always challenging. It was an amazing privilege…and though I left early, I was transformed by my years at Harvard, the friendships I made, and the ideas I worked on.

A proof tells us where to concentrate our doubts.