Success is the sum of small efforts, repeated day in and day out.

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.

我们在童年时读的书是塑造我们灵魂的书。

数学中最重要的是提出正确的问题。