The art of doing mathematics consists in finding that special case which contains all the germs of generality.
The teacher who is indeed wise does not bid you to enter the house of his wisdom but rather leads you to the threshold of your own mind.
The more I see of the representatives of the people, the more I admire my dogs.
"相机能看到眼睛看不到的东西。"
我一直是个非常独立的人,现在依然是。