Scientific rigor must never be compromised by commercial pressures.

A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.

"The greatest threat to the planet is the idea that someone else will save it."

衡量智力的标准是改变的能力。

文学是对抗遗忘的一种形式。

逻辑学研究不仅仅是关于推理规则，而是关于理性思维的结构。