If people want more pornography or more drugs, the market allows them to consume these goods to the point of self-destruction. It oversupplies some goods that are morally harmful, and undersupplies goods that are morally beneficial.
但是它并没有告诉我们在哪一种情况下消费会把我们推向坏的生活。如果人们想要更多的色情或更多的毒品，市场就会给他们消费这些商品，乃至使他们走向自我毁灭。它过度提供在道义上有害的某些商品，而在某些道义上有益的商品上却供应不足。如果要过有质量的生活，我们只能依赖道义，而不是市场。