The greatest tragedy is not death, but forgetting one's mother tongue.

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

Fame is vapor; popularity an accident; the only earthly certainty is oblivion.

"A good book is an event in my life."

Better to live one year as a tiger, than a hundred as a sheep.

The only way to do great work is to love what you do.

做你自己，因为别人已经有人做了。

"We are all broken, but it is in the cracks that the light gets in."

I am not a hero of mathematics. I'm not even that successful; that is why I don't want to have everybody looking at me.