所有老年人共享的大秘密是，你在七八十年里真的没有改变。你的身体变了，但你一点也没变。当然，这会引起很大的混乱。
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.
It is better to have 100 functions operate on one data structure than 10 functions on 10 data structures.
All great truths begin as blasphemies.
最好的企业不仅仅是适应变化，而是推动变化。
The most sustainable product is the one that already exists.
