没有伟大的意志力就没有伟大的才能。
人们害怕他们不理解的东西,憎恨他们无法征服的东西。
The best way to predict the future is to invent it.
In mathematics, you don't understand things. You just get used to them.
当没有人相信你的时候,你必须相信自己。
I am not trying to imitate a photograph; I am trying to make one.