A mind needs books as a sword needs a whetstone if it is to keep its edge.

Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.

应对混乱的唯一方法是拥抱它。

膨胀是一个非常简单的想法，但它解释了很多事情。

To know is nothing at all; to imagine is everything.

我不是英雄，我只是一个普通人。