生活就是抓住机会，尝试新事物，享受乐趣，犯错误并从中学习。

The biggest mistake you can make is thinking you know everything.

Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.

水产养殖技术应该服务于两个目标：生产力和地球健康。