Give the pupils something to do， not something to learn； and the doing is of such a nature as to demand thinking； learning naturally results.
给学生一些事情去做，而不是一些东西去学；而这些事情的性质需要思考；学习会自然而然地发生。
"There is no such thing as a new idea. It is impossible. We simply take a lot of old ideas and put them into a sort of mental kaleidoscope. We give them a turn and they make new and curious combinations."
词语是陷阱，我们在不知不觉中踏入其中。
我们必须挑战现状，使技术更加可访问和公平。
If you want to fly, you have to give up the things that weigh you down.
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
一对爱人婚前彼此非常了解或性格特别相似，这并不能说明他们婚后会幸福。他们往往是弄到后来距离越来越远，彼此烦恼。你既然得和这个人过一辈子，对他的缺点知道得越少越好。