数学家的工作大多是孤独的追求，但也具有深刻的合作性。
A mathematician's work is mostly a solitary pursuit, but it is also deeply collaborative.
The most important thing in communication is hearing what isn't said.
The future competition is not about products, but about business models.
The best policies are those that align economic incentives with ecological health.
对我们是什么的批评，同时是对强加于我们的限制的历史分析，也是对超越这些限制的可能性的实验。
经济景观是一个由不同等级的中心地组成的系统，每个中心地为特定区域服务。