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 good life is using your signature strengths every day to produce authentic happiness and abundant gratification.

The future of aquaculture lies in balancing ecological health with economic viability.

不好的事情会经常发生。