Efficient market theory is correct in that there are no gross inefficiencies， but we look at anomalies that may be small in size and brief in time.

笑和哭都是对挫折和疲惫的反应。我自己更喜欢笑，因为之后需要清理的少。

可持续包装方案与产品本身同样重要，能减少环境足迹。