我们实现明天的唯一限制将是我们今天的怀疑。

唯一真正有价值的是你与你爱的人共度的时光。

成长是痛苦的，但没有什么比停滞不前更痛苦。

知识只有在分享时才有价值。

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 more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the voice of the eternal.