所有老人共同的大秘密是，你在七八十年里其实并没有改变。你的身体变了，但你一点都没变。当然，这会造成很大的困惑。
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.
History is not just the story of bad people doing bad things. It's also the story of good people doing nothing.
The challenge is to make the invisible visible.
The best fruits come from the best practices; never compromise on standards.