可持续性不是一种选择，而是我们对下一代的责任。
The best stories are not found in books, but in the eyes of those who have lived them.
There are no facts， only interpretations.
The best reader is the writer who reads his own work.
可持续性不仅仅是植树；而是在正确的地方种植正确的树木，并确保它们世代繁茂。
当你悲伤的时候，就会喜欢看落日。
历史的终结将是一个非常悲伤的时刻。为纯粹抽象目标而奋斗、愿意冒生命危险的斗争，以及激发勇气、想象力、理想主义的全球意识形态斗争，将被经济计算、无休止的技术问题解决、环境关注和复杂消费需求的满足所取代。
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.