繁荣的森林是成功的最终衡量标准。

有时候你必须被打倒得比以往任何时候都低，才能站得比以往任何时候都高。

We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

Consciousness is not a thing, but a process.

社交场中的闲逸令人厌恶的，因为它是被迫的；孤独生活中的闲逸是愉快的，因为它是自由的、出于自愿的。