自私基因理论并不是关于日常意义上的自私的理论。它是关于行为进化的理论。

The most advanced aquaculture systems still rely on the wisdom of natural ecosystems.

The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.