译文：读书人一定要把圣贤的诗书作为安身立命的根本，为人处世要恪守孝悌，胸怀仁义。赏析：无数圣贤流传下来的思想，读书人应该去学习，因为它是我们做人的根本。古人就提出孝、悌、礼、仪、忠、信、廉、耻为待人处事的准则。

一个理论的优雅不仅在于其数学表述，还在于其在一个统一框架下连接不同现象的能力。

I keep thinking about this river somewhere, with the water moving really fast. And these two people in the water, trying to hold onto each other, holding on as hard as they can, but in the end it’s just too much. The current’s too strong. They’ve got to let go, drift apart.

With great tools comes great responsibility—especially when those tools can alter life itself.

Thank you music for making my life so rich.

In the quest for understanding the cosmos, every question answered leads to a dozen more.

写作就像用文字绘画，创造出活在读者心中的图像。