有些伤口永远不会愈合,只会结痂。
教育者的心必须是一团活生生的火焰,能够点燃年轻人灵魂的火焰。
The most important single central fact about a free market is that no exchange takes place unless both parties benefit.
Internal mental events are irrelevant to the scientific study of behavior.
这个世界不是因为你能做什么,而是你该做什么。