To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact.

许多人会称我为冒险家，我确实是……只是另一种冒险家：那种为了证明自己的真理而冒险的人。

I don’t focus on what I’m up against, I focus on my goals.

能量守恒定律是经验结果的概括。