我不敢说数学和疯狂之间有直接关系，但毫无疑问，伟大的数学家都具有狂热的特质。
I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
The best way to help someone is to empower them to help themselves.
生活不是关于你不能做什么，而是关于你能做什么。
Everyone wants a better life: very few of us want to be better people.
免费的疫苗比昂贵的治疗更有价值，但更难推广。
永远质疑你的假设——最有趣的发现往往就在那里。