A great way to understand yourself is to seriously reflect on everything you find irritating in others. 

Thanks to those who once looked down on me, making me live more brilliantly without bowing my head.

The art of progress is to preserve order amid change and to preserve change amid order.

数学是理性的音乐。

The best time to plant a tree was 20 years ago; the second best time is now.

为明天做准备的最好方法就是集中你所有智慧，所有的热忱，把今天的工作做得尽善尽美。

The everyday is always extraordinary if you look closely enough.