The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

It's not the customer's job to know what they want.

最美的风景在攀登最艰难的山峰之后。

我们都是潜在的化石，仍然携带着我们过去的痕迹。

数学不仅仅是数字和方程；它是关于理解宇宙中的深层模式和联系。