过去是一个异国他乡；他们做事的方式不同。

He who has no homeland is like a nightingale without a green forest.

你不尝试就不知道你能达到什么。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

Memories, even your most precious ones, fade surprisingly quickly. But I don’t go along with that. The memories I value most, I don’t ever see them fading.

如果你不前进，就是在落后。

大多数人的问题在于他们用希望、恐惧或愿望思考，而不是用头脑。