在一个国家中，一个公民的自由是对其他人的威胁。

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.

我不害怕冒险。我认为这就是生活的意义。

可持续性已不再是一种选择，而是任何希望长期繁荣的企业的必需品。