"History is not the past. It is the method we have evolved of organizing our ignorance of the past."

I like dogs. You always know what a dog is thinking. It has four moods. Happy, sad, cross and concentrating. Also, dogs are faithful and they do not tell lies because they cannot talk.

科学应该始终为人类服务，而不是反过来。

Exile is not just a geographical concept; it is a state of mind.

It is better to be a human being dissatisfied than a pig satisfied； better to be Socrates dissatisfied than a fool satisfied.

合作是解决复杂问题的关键。