The only thing that you absolutely have to know is the location of the library.
你绝对必须知道的唯一东西是图书馆的位置。
It is in the thirties that we want friends. In the forties we know they won't save us any more than love did.
The language of mathematics is universal, transcending cultural and linguistic barriers.
艺术家的角色是提出问题,而不是回答它们。
The best way to predict the future is to invent it.