天地不仁，以万物为刍狗。
天地没有偏爱，对待万物像对待草扎的狗一样，任其自生自灭。
The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.
可持续性不是一种选择，而是唯一的前进道路。