Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

I don't know. Sometimes when I feel about to cry, it often evolves into an impulse to almost laugh. That must have been how I really felt at the time, because I laughed, almost giggled.

The only limits in life are the ones you set for yourself.

梦想的意义在于不断追求。

Freedom of men under government is to have a standing rule to live by, common to everyone, and not to be subject to the inconstant, uncertain, arbitrary will of another man.

解释：手指粗于胳膊， 胳膊粗于大腿， 病情必然很重。

Fame is not the most important thing in life. The most important thing is to be happy.

讲故事的力量在于它能够连接我们，弥合人与人之间的鸿沟，创造共情和理解。