格者，正也。正其不正以归于正也。
修正错误，是人生必修课。不断“正心”，才能不走偏。
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
当没有人相信你时，你必须相信自己。