有一个人从天堂来到人间旅游，他所使用的是有效三十天的减价票，他试图要把他的回程票卖掉。
You’ve got to have models in your head. And you’ve got to array your experience—both vicarious and direct—on this latticework of models. You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life. You’ve got to hang experience on a latticework of models in your mind.
The most successful buildings are those that evolve over time to meet changing needs.
The most interesting art is the art that doesn’t give you all the answers.