The moment you stop trying is the moment you start dying.

  沉默是愚人的美德。

The mind is not a vessel to be filled, but a fire to be kindled.

人类今天拥有自我毁灭的手段——要么是在完全疯狂的发作中，即在一场大战中，通过短暂的破坏发作，要么是通过对原子技术的粗心处理，通过缓慢的中毒和遗传结构的恶化过程。

"Prime numbers are what is left when you have taken all the patterns away. I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them."

课程必须被视为达到目的的手段，而不是目的本身。