You must be the change you wish to see in the world.
The best legacy we can leave is a living one.
The true challenge in mathematics is not solving problems, but asking the right questions.
The difference between fiction and reality? Fiction has to make sense.
我不敢说数学和疯狂之间有直接关系,但毫无疑问,伟大的数学家们都有狂躁、妄想和精神分裂的症状。