可持续性不是一种选择，而是我们对后代的责任。

The only thing that is truly yours is your passion.

哲学的任务在于揭示被日常经验遮蔽的真理。

我们都在寻找某样东西，但我们并不总是知道那是什么。

The duty of man is the same in respect to his own nature as in respect to the nature of all other things.

I'm never going to change so much that people can't recognize me.