我还不够年轻，无法知道一切。

I paint people not because of what they are like, not exactly in spite of what they are like, but how they happen to be.

I love people who make me laugh. I honestly think it's the thing I like most, to laugh. It cures a multitude of ills. It's probably the most important thing in a person.

Mathematics is a way of thinking, not just a collection of facts.

当障碍被消除而非设立时，创新才能蓬勃发展。