唱歌不仅是技巧，更是心灵的交流。

重要的不是想法，而是将想法变为现实。

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

The Ethiopians say that their gods are snub-nosed and black, the Thracians that theirs have light blue eyes and red hair.

真相并不总是最容易相信的事情。