He who refuses to do arithmetic is doomed to talk nonsense.
人类是一种非常奇特的生物。他以为自己有一个灵魂，其实他有几十个。
你忘记了你想记住的，却记住了你想忘记的。
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.
Mathematics is the language with which God has written the universe.