没有思想的自由，就没有真正的自由。

The true measure of success in forestry is leaving the land healthier than we found it.

They throw their shadows before them who carry their lantern on their back.

伦理学的任务不是提供答案，而是澄清问题。

资本主义既不聪明，也不理性，更不公平。它是一个导致灾难的野蛮制度。