竞争均衡解决方案的存在与规范经济学或福利经济学之间的关系也许同样重要。
No one is altogether to be blamed for the defects of his nature; but he is blameworthy if he takes no pains to correct them.
自由是一个沉重的负担,是精神承担的一个伟大而奇怪的负担。
Sustainability isn't a cost—it's an investment in resilience and long-term growth.