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.

The night is a black dog that follows you home.

成功没有捷径，只有脚踏实地才能走得更远。

The greatest wisdom is to recognize one's own ignorance.

教育的最大的秘诀是：使身体锻炼和思想锻炼互相调剂。

一个和谐的社会，不是争议的消失，而是公义的彰显。