可持续发展不是减少伤害,而是创造更多益处。
唯一能拯救我们的是停止害怕。
The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.
I'm not a legend, I'm just a man.
——〈民权主义第五讲〉,1924年4月20日