在理论物理学中，近似的艺术往往比精确解更重要。

我们死去时，心中装满了爱人和部落，我们吞下的味道，我们投入并游过的身体，仿佛智慧的河流，我们爬进去的角色，仿佛树木，我们藏身的恐惧，仿佛洞穴。

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.

我不让消极情绪影响我。

在数学中，你不是理解事物，你只是习惯了它们。