Doubt is not a pleasant condition， but certainty is an absurd one.

建筑既关乎私人空间，也关乎公共空间。

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.

"The past is always tense, the future perfect."

经济体制的核心是自由市场，它能够实现最大程度的效率和资源分配。