对人类来说，最可恨的痛苦是知道一切却无能为力。

The journey of scientific discovery is as important as the destination.

The natural effort of every individual to better his own condition， when suffered to exert itself with freedom and security， is so powerful a principle that it is alone， and without any assistance， not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.

成功的人无论周围发生什么，都保持积极的生活态度。