伦理学的任务不仅是理解世界，而且是改变世界。

Thoughts are the shadows of our feelings always darker， emptier， simpler.

In this industry, tradition and technology must walk hand in hand.

The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.

一旦社会接受了财产不像上帝的法律那样神圣，并且没有法律和公共正义的力量来保护它的观念，无政府状态和暴政就会开始。

对森林最大的威胁不是采伐，而是漠不关心。