The process of mathematical discovery is not about reaching a destination, but about the journey itself.

Leadership is about making tough decisions and standing by them, even when they are unpopular.

Overhead, without any fuss, the stars were going out.

The hour of departure has arrived，and we go our separate ways，I to die，and you to live。Which of these two is better only God knows.

我们必须愿意改变并适应新的现实。