当我们无力改变处境时，我们就被挑战去改变自己。
真理并不总是美丽的，美丽的话语也不总是真理。
经济政策应以实证证据为依据，而不仅仅是意识形态。
PID控制器是控制工程师的通用工具，适用于各种各样的过程。
The more we understand individual things， the more we understand God.
My mother was an atheist. She used to say that there was good news and bad news about hell. The good news is, hell is just the product of a morbid human imagination. The bad news is, whatever humans can imagine, they can usually create.