山溪里的水随着季节常涨常退，不明事理的小人反复无常。

To understand is to know what causes what.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

教学的全部艺术，不过是唤醒年轻人天生的好奇心，以便日后满足它。

A business has to be involving, it has to be fun, and it has to exercise your creative instincts.

Art is a mirror held up to society, but it’s also a hammer with which to shape it.

天然气将作为过渡燃料发挥关键作用，但我们的目光必须始终聚焦在净零排放的最终目标上。

每一个数学问题都是通向新理解世界的窗口。