"In the end, we will remember not the words of our enemies, but the silence of our friends."
最终，我们记住的不是敌人的话语，而是朋友的沉默。
What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.
Mathematics is the key to understanding the universe.
故事永远不会完成，只会被放弃。