The more you know, the more you realize how little you know.
The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.
教育的最大的秘诀是:使身体锻炼和思想锻炼互相调剂。
我什么都不发明,我只是重新发现。
The world is a very complicated place, and it's not always easy to understand what's happening around us.
凡是天下的祸患,掠夺与怨恨,之所以能出现,原因就在于人们不相爱。因此,仁义的人认为这是不对的。 
"Depression is the condition that best epitomizes the current ideological moment."
It has always been easy to hate and destroy. To build and to cherish is much more difficult.