The most important thing is to be happy with what you're doing.

在数学中，旅程和目的地同样重要。

In time of war, when truth is so precious, it must be attended by a bodyguard of lies.

我总是很高兴地想到，我的教育大部分是非正式的，并且根植于现实世界。

A book is a mirror: if an ass peers into it, you can't expect an apostle to look out.

市场总是在变化，你的策略也应该如此。