When you do something best in life, you don’t really want to give that up – and for me it’s tennis.

Fear is not your enemy. It is a compass pointing you to the areas where you need to grow.

The study of Shimura varieties is a testament to the power of geometric intuition.

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.