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。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
爱是唯一能超越时间和空间的东西。
The key to sustainable agriculture is innovation and respect for nature.
Understanding the limits of computation is as important as pushing its boundaries.