可持续性不是选择，而是责任。

Out, out, brief candle! Life's but a walking shadow, a poor player That struts and frets his hour upon the stage And then is heard no more. It is a tale Told by an idiot, full of sound and fury, Signifying nothing, 

每个句子末端都等待着一个真相。

哲学的任务不是去发现什么是真实的，而是去理解我们已经知道的东西。