عنوان مقاله [English]
One of the fundamental issues in the field of moral psychology is what psychological assumptions moral views have and how much empirical evidence these assumptions carry. Accordingly, the conflict between egoism and heterogeneity has been proposed in the psychology of ethics, and empirical evidence has emerged in favor of either of these two moral theories. Otherness is one of the goal-oriented theories that, based on the psychological basis of its theory, recommends self-sacrifice and creating the greatest good for others, regardless of oneself. Psychological heterogeneity is the most important basis of moral heterogeneity and is an attempt to violate monotonousness and love of human nature and to prove other heterogeneous desires and motives. Most moral philosophers and psychologists reject the monotonous nature of human nature and believe in the possibility of altruism along with selfishness in human nature. In this research, relying on arguments and empirical evidence, an attempt has been made to prove psychological heterogeneity in order to be able to rely on this basis, moral heterogeneity in the field of normative ethics.