The key to success is to always stay ahead of the curve.

What I’m doing right now, I’m chasing perfection.

Logic is the foundation of all mathematical reasoning.

The secret of change is to focus all of your energy not on fighting the old, but on building the new.

We recognized early on that smart people do very dumb things, and we wanted to know why and who, so that we could avoid them.

所有老年人共有的一个大秘密是，你在七八十年里其实并没有改变。你的身体变了，但你一点也没变。这当然会引起很大的困惑。