数学研究是一次进入未知的旅程，每一次发现都为新的谜题打开了大门。

心灵是大自然对生存挑战的回应。

I am made and remade continually. Different people draw different words from me.

一个词的意义在于它在语言中的使用。

The more personal you are, the more universal you become.

The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history. Then have somebody write new books, manufacture a new culture, invent a new history. Before long the nation will begin to forget what it is and what it was.

A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.