进步的真正衡量标准不在于知识的积累，而在于其应用于人类的改善。

History is not just about kings and battles—it's about the people who lived through it.

And what I noted, since the really big ideas carry 95 percent of the freight, it wasn’t at all that hard for me to pick up all the big ideas and all the big disciplines and make them a standard part of my mental routines. Once you have the ideas, of course, they are no good if you don’t practice. You don’t practice, you lose it.

我现在写的故事越来越多地关于记忆，关于过去，以及我们如何重建过去。