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.

科学最令人兴奋的方面是发现一些新的东西，一些以前没有人见过的东西。

数学不是沿着一条清理得很好的高速公路小心行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。