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.
A Theory of Justice A Theory of Justice is a work of political philosophy and ethics by John Rawls, in which the author attempts to solve the problem of distributive justice (the socially just distribution of goods in a society) by utilising a variant of the familiar device of the social contract. The resultant theory is known as "Justice as Fairness", from which Rawls derives his two principles of justice. Together, they dictate that society should be structured so that the greatest possible amount of liberty is given to its members, limited only by the notion that the liberty of any one member shall not infringe upon that of any other member. Secondly, inequalities either social or economic are only to be allowed if the worst off will be better off than they might be under an equal distribution. Finally, if there is such a beneficial inequality, this inequality should not make it harder for those without resources to occupy positions of power, for instance public office.[1]