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.

The best way to see divine light is to put out your own candle.

癌症治疗的创新来自于挑战现状。

最好的故事是那些留给我们的问题多于答案的故事。