历史是让死者开口说话的艺术。

叶公问子路：孔子是怎样的人，子路不回答。孔子说：“你怎么不说：他这个人啊，发愤学习就忘记吃饭，高兴起来就忘记了忧愁，不知道快要变老了等等？”

Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

Success is not just about profit; it's about building something sustainable.

可持续性不是一种趋势；而是我们对地球和未来农民的责任。