These are empirical claims. Aquinas finds human beings using the languages of justice whenever and wherever they craft a life together. He also finds considerable agreement among us. When asked about justice, about human relations set right, we tend to say and do similar kinds of things. No doubt, we have always disagreed about the specifics of just exchanges and relations and the details of commutations and distributions. All this is well known and frequently noted. Less obvious, and often ignored, is the fact that disagreements of all kinds take place against a broad backdrop of agreement in concept and judgment, meaning and truth.