The art of doing mathematics consists in finding that special case which contains all the germs of generality.

返祖现象是理解天生犯罪人的关键。

人生真实，人生诚挚。

To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

爱情是有魔力的，但如果放弃责任，这份魔力就会消失。