Happiness is beneficial for the body, but it is grief that develops the powers of the mind.

"The best decisions are often made by a group of people who are not afraid to challenge each other's ideas."

Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.

我练体操是因为我喜欢它，而不是因为我想成为世界上最好的。

The man who is anybody and who does anything is surely going to be criticized, vilified, and misunderstood. This is part of the penalty for greatness, and every great man understands it.

我不是悲观主义者，我是一个受过悲观主义训练的乐观主义者。

自然给了我们一些她的光芒，但不是全部的光芒。