Sustainability and efficiency must go hand in hand in modern energy production.

There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.

最深刻的定理往往源于最简单的观察。

I think the most important thing in life is self-confidence.

计算效率的概念是学习算法设计的核心。