No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.
无论他做什么,地球上的每个人在世界历史中都扮演着核心角色。而通常他并不知道这一点。
改变行为的唯一方法是通过操纵强化偶然性。
幸福不是相信我们不需要改变;而是意识到我们可以改变。
The greatest glory in living lies not in never falling, but in rising every time we fall.