测试程序的最好方法是测试它。

I quite agree with them that it is not an ennobling experience. Poverty entails fear, and stress, and sometimes depression; it means a thousand petty humiliations and hardships. Climbing out of poverty by your own efforts, that is indeed something on which to pride yourself, but poverty itself is romanticised only by fools.

局部和全局现象之间的相互作用是数论中反复出现的主题。

如果你不能得到奇迹，那就成为一个奇迹。

The real reward in science is contributing to something greater than yourself.