没有所谓的幸福结局。

能源的未来在于传统能源与可再生能源之间的平衡。

It is better by noble boldness to run the risk of being subject to half of the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.

关于MM定理最重要的事情不是它的现实性，而是它的简单性。