the theorist noted for his theories on moral development is
Moral development Notions of morality development have been developed over centuries, the earliest came from philosopher like Confucius, Aristotle, and Jean-Jacques Rousseau, who all took a more humanist perspective and focused on the development of the conscience and sense of virtue. In the modern day, empirical research has explored morality through a moral psychology lens by theorists like Sigmund Freud and its relation to cognitive development by theorists like Jean Piaget, Lawrence Kohlberg, B. F. Skinner, Carol Gilligan and Judith Smetana.