都是出卖,卖给中原各国也可以,何必非要卖给越国呢? 
The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.
Efficiency is doing things right; effectiveness is doing the right things.
商业中最危险的一句话是"我们一直都是这么做的"。
The principle of asceticism never was, nor ever can be, consistently pursued by any living creature.