一个公司的文化是由其员工定义的，而不是其政策。
A company's culture is defined by its people, not its policies.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The key is to stay present and enjoy the moment.
学习数学的唯一方法就是做数学。
出自北齐·颜之推《颜氏家训·勉学》。不管是愚人还是聪明人，总想自己见多识广，但不肯读书，这就等于想吃饱饭却懒得做饭，想穿暖却懒得缝制衣服。
I think it's important to be yourself and not try to be someone else.
最有趣的艺术是让你思考的艺术。