Rawls' difference principle says

Moral development

Is fairness always about equal outcomes?

A Theory of Justice

Nozick's entitlement theory argues against Rawls — redistribution violates individual rights

Immanuel Kant

Kant separates duty from inclination to determine moral worth

Original position

Original position thought experiment by John Rawls

Problem of universals

Universals question independent existence

Principle of sufficient reason

Every contingent fact has a sufficient reason