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.

无论我们去过哪里，都会在那里留下自己的一部分。

"To travel is to discover that everyone is wrong about other countries."

假设有效性的唯一相关检验是预测与经验的比较。