海鲜的真正成本不在价格标签上，而在生态系统中。

The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

当你尝试新事物时，你永远不知道会发生什么。这一切都是实验性的。