The reason that the invisible hand often seems invisible is that it is often not there.
看不见的手之所以常常看不见，是因为它常常不存在。
If winning becomes too important in a game， change the rules to make it more fun. Changing rules can become the new game.
We are all bound by the laws of our own natures.
这个世界惟有两样东西让我们的心灵感到深深的震撼，一是我们头顶上灿烂的星空,一是我们内心崇高的道德法则。
文化生态学与人类生态学的不同之处在于它强调文化被修改的适应过程。