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.

改变你的思想，你就改变了你的世界。

We need to be part of the solution, not part of the problem.

任何土地最好的肥料是主人的足迹。