我不考虑我卖了多少唱片。我只考虑音乐。

如果你花超过13分钟分析经济和市场预测，你就浪费了10分钟。

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

最成功的企业是那些能够预见并适应市场趋势的企业。