Ideas are everywhere, but knowledge is rare.
想法到处都是,但知识非常稀缺。
当一个孩子问出一连串的「为什么」的时候,最聪明的回复就是「我不知道,你是怎么想的呢?」
The only way to learn mathematics is to do mathematics.
The most profound truths are often the simplest.
我写作是为了理解这个世界。