抽象的目的不是含糊不清，而是创建一个新的语义层次，在这个层次上可以绝对精确。
What’s really important is to question the questions.
The best decisions are made when you combine data with human intuition.
我不和别人竞争，我和自己竞争。
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.