唯一不变的是变化本身。

Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.

在数学中，你不理解事物。你只是习惯了它们。

平庸的标志是寻找先例。

中国的崛起代表了自成立以来对自由国际秩序的最重大挑战。