Experience is simply the name we give our mistakes.

过日子就像是上帝在写小说，就让他放开手去写吧。

We cannot choose the times, but we can choose how to respond to them.

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.

The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.