不要为未来担忧，不要为过去哭泣。

True progress happens when we stop optimizing for the past and start building for the future.

The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it.

The stranger is an element of the group itself, not unlike the poor and sundry 'inner enemies'—an element whose membership within the group involves both being outside it and confronting it.

生活里有两个悲剧：一个是没有得到我们想要的；另外一个是得到了。

美德即使被压迫，依然是美德。