信心不是乐观或悲观，也不是性格属性。它是对积极结果的期待。

一流智力的检验标准是同时持有两种相反的观点，并且仍然能够正常运作。

The Langlands program is a vision of how mathematics could be seen as a single, coherent whole.

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

世界是生者的地方，死者在其中没有位置。死者什么都不是。