人心比山川更险恶,比了解天象更困难。
幸福通过美德获得;它是人通过自己的意志获得的美好。
The essence of mathematics is not just in solving problems but in asking the right questions.
我不是一个完美主义者,但我喜欢把事情做好。更重要的是,我感到一种无尽的需要去学习、改进和进化。
Mathematics is the language in which the gods talk to people.