都是出卖,卖给中原各国也可以,何必非要卖给越国呢?
The goal is not just to design a market, but to design one that works well in practice.
事实是顽固的东西;无论我们的愿望、倾向或激情的驱使如何,它们都无法改变事实和证据的状态。
Ethics isn't a barrier to progress—it's a guide for responsible progress.