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.

真正的成长来自于挑战现状，而不仅仅是维持现状。

The theory of reductive groups is the backbone of the Langlands program.

那时我太老了，现在反而年轻了。

成功的人无论周围发生什么，都保持积极的生活态度。

The main thing is to be moved, to love, to hope, to tremble, to live.

家并不总是一个地方；有时是那些让你感到归属的人。