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.

"Truth is not always beautiful, nor beautiful words the truth."

在量子场论的领域中，真空并非空无一物，而是充满了虚粒子的沸腾大锅。

永远不要回头看，除非你想走回去。