释义：从天下的角度看，应遵循天下的公理，天下不是某一姓的私有财产。

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.

矿工的头盔不仅保护头部——它还象征着辛勤工作的尊严。