The most sustainable forest is one that provides value to people while maintaining its ecological integrity.

一个人不仅可以通过他的行为对他人造成伤害，也可以通过他的不作为对他人造成伤害，无论哪种情况，他都应对他们负有道义责任。

"Purpose gives meaning to mental activity."

"To be a human being means to possess a sense of guilt."

The world is full of people who will tell you what you can't do. You don't need them. You already know what you can't do. What you need is someone to tell you what you can.

The whole is more than the sum of its parts.

Consciousness is the theater where the drama of adaptation is played out.

我们学得越多，就越发现自己的无知。

幸福不是没有痛苦，而是有能力克服它。