有时候，为了得到你想要的东西，你得有点调皮。

The principle goal of education is to create men who are capable of doing new things, not simply of repeating what other generations have done.

世界上最好和最美丽的东西是看不见甚至摸不到的——它们必须用心去感受。

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.