“Defenders of the free market insist that virtue is essential to a just and thriving economy. If morality is relevant to economics, it is equally so to allied fields of social science, all of which have as their object of investigation the human person. Indifference to the moral dimension distorts the study of human action in economics; so too does it deform the discipline that reaches behind that action to the human mind: psychology….”
Via The Moral Limits of Psychology @ Acton Institute