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

"To write is to confront the chaos of existence and impose some order upon it."

No matter how much time passes, the connection with our fans never fades.

The multiverse is not a theory, but a prediction of certain theories.

在真实与不真实之间，在真与假之间，没有严格的区别。一件事不一定是非真即假；它可以是既真又假。

译文：知识只有到实际运用的时候才会后悔自己当初读得太少了，事情如果没有亲身经历就不知道其中的艰难。赏析：年少时，我们不知道读书的意义，等到出生社会以后才明白读书的好处。人生很多事情，看似简单，但当我们真正地去做的时候，才发现并非易事。