This document discusses the concept of justice from several perspectives. It defines justice as rendering to each person his or her due, and identifies three properties of justice: otherness, indebtedness, and equality. It outlines three kinds of justice based on relationships between individuals and society: legal justice, commutative justice, and distributive justice. The document also discusses human dignity, rights, duties, and the preferential option for the poor. Finally, it addresses the dignity of human work.