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.
心理学的真理存在于实践经验中。
亲代投资是理解两性交配策略差异的关键。
技术的进步应该让生活更简单，而不是更复杂。