我们对宇宙了解得越多,就越意识到我们不知道的还有很多。
The more we learn about the universe, the more we realize how much we don't know.
The art of doing mathematics consists in finding that special case which contains all the germs of generality.
只要你能坚持一步一步往前走,你几乎可以度过任何难关。
我们不是因为变老而停止玩耍,而是因为停止玩耍而变老。