The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

He who refuses to do arithmetic is doomed to talk nonsense.

当你相信自己并且永不放弃梦想时，成功就会到来。

我的艺术源于只有我能看到的幻觉。