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

身体为灵魂提供了一个照料和使用的工具。

The Guggenheim Bilbao changed my life. It proved that architecture could transform a city.

"The world is full of stories, but it is the ones we choose to tell that define us."

我不信任现实，但我信任绘画。

Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.