"The major threats to survival that our ancestors faced - predators, starvation, disease - left their mark on our fears and anxieties."

"In the end, we are all just fragments of the stories we tell ourselves and others."

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

没有人民的普遍知识，自由就无法得到保障。

教师必须相信学生的潜力。他必须在每个人身上看到神圣之火的火花。

The spaces between buildings are as important as the buildings themselves.

一个从未犯错的人是因为他不曾尝试新鲜事物。

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.