坚持与固执之间的区别在于一个源自坚强的意志，另一个源自坚强的拒绝。

"Life is a shipwreck, but we must not forget to sing in the lifeboats."

永远不要让你的道德感阻止你做正确的事。

I’m a great believer in solving hard problems by using a checklist. You need to get all the likely and unlikely answers before you; otherwise it’s easy to miss something important.

We don't try to outsmart the market; we try to understand it.