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

"The canvas is a battlefield where the artist fights for truth."

A good world needs knowledge， kindliness， and courage； it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men.

上帝要谁灭亡，必先让他疯狂。

I try to express human emotions and spirit through architecture.

过去是一个陌生的国度；他们在那里做事的方式不同。