The most important thing is to be true to yourself and to the character you're playing.

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.

大胆梦想，敢于失败。

数学的目标是使简单的复杂化，使复杂的简单化。