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.

对称性是降低复杂性的概念（协同例程包括子例程）；到处寻找它。

故事的力量在于它能够改变读者。

记住，声誉和正直是你最宝贵的资产——而且可能一瞬间就丧失。

解决问题的最好方法是用不同的方式思考它。