In mathematics, the art of proposing a question must be held of higher value than solving it.

海洋不仅是一种资源，更是一种责任。我们必须为子孙后代明智地管理它。

Sun don't shine forever.

Efficiency in farming should never come at the cost of biodiversity.

心智是一套信息处理机器，它们由自然选择设计来解决我们狩猎采集祖先面临的适应性问题。