成绩差距主要是知识差距。

The desire for recognition, the thymotic part of the soul, is the most politically dangerous part of human nature.

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.

世界上充满了那些不再倾听自己内心声音的人，或者只倾听邻居的声音来了解他们应该做什么、应该如何行为以及应该遵循什么价值观的人。

可持续性不是一种选择，而是我们对后代的责任。