Abstract

Tomasello’s A Natural History of Morality is novel, compelling, and comprehensive. Drawing on past and current research in developmental psychology, as well as moral philosophy, I make the following points: (1) cooperation is a significant major hallmark of early human sociality but is also the foundation for antagonistic goals designed to enhance one’s own group’s benefit at the cost of due justice to others; (2) interdependence coexists with independent autonomous thinking, which is necessary for challenging group norms, authority, and institutional mandates, and is a core aspect of morality; and (3) morality after age 5 years undergoes major, qualitative developments which shed light on what it means to view morality as an impartial obligation to uphold fairness, to recognize the breadth of moral concepts including equality, rights, and others’ welfare, and to challenge social inequality and injustice, throughout human ontogenetic development.