过去并未死去，它甚至从未过去。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
最好的音乐本质上是为你提供面对世界的东西。
改革需要勇气，但更需要智慧。
The past is a different country, they do things differently there.
The changes we dread most may contain our salvation.