A book must be the axe for the frozen sea within us.

The value of a mental process lies not in its composition, but in its consequences for survival and flourishing.

我们每一次的观察都是向解开宇宙之谜迈近的一步。

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.

你必须享受其中。如果你不开心，那有什么意义？

The essence of liberty is the ability to pursue one’s own goals without arbitrary interference from others.