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。
The mind is a set of information-processing machines that were designed by natural selection to solve adaptive problems faced by our hunter-gatherer ancestors.
There is nothing permanent except change.
Politics and literature are both attempts to change reality, just in different ways.
Sustainable forestry is not an option; it's an obligation.
世界上有许多既美好又出类拔萃的事物，可是他们却各不相依。
Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.