有时候你只需要振作起来，继续前进。

The past is a place of reference, not a place of residence.

预言是人类唯一一项无法由重复练习而进步的技术。

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

Own only what you can always carry with you: know languages, know countries, know people. Let your memory be your travel bag.

战略就是做出选择、权衡取舍；就是要有意识地选择与众不同。

The most important property of a program is whether it accomplishes the intention of its user.