Literature is the best weapon against intolerance and fanaticism.

农民是最早的环保主义者；他们的日常决策对我们的地貌影响比任何政策都大。

Every challenge is an opportunity to learn and grow.

The thing that we are trying to do at Facebook, is just help people connect and communicate more efficiently.

解释：天道远离人间，人道则存在于身边的社会人事之中，可以就近掌握。对于人所难及的事物，如何能知道呢？