文章的难以精工，就像器物的难以制成一样。

学习计算机科学的最好方法就是去做计算机科学。

理解黑洞就是理解宇宙的结构本身。

Make decisions when you are ready, not under pressure. Others will always push you to make a decision for their own purposes, internal politics, or some other external need. But you can almost always say, “I need a little more time to think about this. I’ll get back to you.” This tactic is very effective at defusing even the most difficult and uncomfortable situations.

The most painful thing is losing yourself in the process of loving someone too much, and forgetting that you are special too.