Mathematics is not just a human invention; it has a deep reality that exists independently of us.

我活得越久，就越倾向于相信地球被其他星球用作疯人院。

【讲解】：聪明智慧的人爱水，有仁德的人爱山。聪明智慧的人爱活跃，有仁德的人爱沉静。聪明智慧的人快乐，有仁德的人长寿。

The power of human cognition comes from its ability to generalize.

世界是一面镜子，它映照出我们的丑陋。