"To live is the rarest thing in the world. Most people exist, that is all."

Silence is the language of the soul.

A well-designed system should be easy to use, easy to understand, and easy to modify.

恐惧风险的本能，反而让穷人承担更大风险。

知识的最大敌人不是无知，而是知识的幻觉。

真正的挑战是创造出超越其功能的意义。

经济学家正确地预测了过去五次衰退中的九次。