数学是理性的音乐。
我不喜欢被告诉不能做什么。
做出伟大工作的唯一方法就是热爱你所做的事情。
义务是由于对法则的敬重而产生的行为必要性。
The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.