朋友能提供的唯一帮助，就是通过举一面镜子让你看到自己高尚的形象，从而保持勇气。
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.
可持续性不是一种趋势，而是生存的必需。
心理学的任务是将复杂的心理现象还原为最简单的组成部分。
"If people were rain, I was drizzle and she was a hurricane."
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.