你能花在孩子身上最好的东西就是时间。

Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.

所有财富都是劳动的产物。

The essence of education means: one tree shakes another, one cloud pushes another, one soul awakens another.

我不是作家，我是战地记者。

最危险的事情就是自以为知道自己在做什么。