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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.

鏡子不僅僅是一個表面，它是一個維度。

Sustainability is no longer an option; it's a responsibility we owe to future generations.

The study of topological phases of matter is a testament to the power of theoretical physics to predict and explain new states of matter.

The cause of light is not in the colors， but in the light.