Success is no accident. It is hard work, perseverance, learning, studying, sacrifice and most of all, love of what you are doing.

To understand the universe, we must first understand ourselves.

我只是努力对自己和周围的人诚实。

Waste is merely a resource we haven’t learned to value yet.

唯一真正的监狱是恐惧，唯一真正的自由是从恐惧中解脱。

A proof is a device for convincing someone else that a mathematical statement is true.