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.

我总是努力对自己和他人保持诚实。

The streets were dark with something more than night.

你给予的越多，得到的就越多。

出自先秦《荀子·哀公》。鸟被逼得走投无路之时就会用嘴啄人，兽到困窘之时就会用爪抓人，人到穷困潦倒之时就会设计骗人。以鸟兽困窘之时的行为为喻，说明人到穷困潦倒之时便会放弃道德操守的原因。

I'm not a person who likes to be in the middle.

I'm not afraid to fail, I'm afraid not to try.

I’m not going to swim for anybody else. I’m swimming for me.