工程的目标不仅仅是建造东西，而是建造在不确定性下运作良好的东西。

Children have never been very good at listening to their elders, but they have never failed to imitate them.

"The past is never dead. It's not even past."

当我们平衡经济增长与环境管理时，真正的进步才会发生。

一个心理过程的价值在于它的生存效用。