War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.

变体：有七个原因决定了所有人类的行动：机遇、本性、强迫、习惯、理性、激情和欲望。

The times they are a-changin'.

当你失败时，你会学到东西。当你成功时，你会学到更多。

可持续性不再是可选项，而是我们前进的唯一道路。