The future of energy lies in the balance between traditional resources and renewable alternatives.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法：它是关于理解的。
The best time to buy is when no one else wants it.
We have to be careful not to become stylists.
技术只是一个工具。真正起决定性作用的是使用它的人的创造力和想象力。
The challenge is to make the invisible visible.