The role of "good" in the Law is a perspective to develop a model of Law as "art of good and equality" in the sense of Roman Law. The relation between the two concepts of "good man" and "good faith" in the civilian tradition of the Roman Law System is quite close. This model of the the good man in the sense of honest man and the principle of good faith in the law of contract have been perceived as a principle of justice in the Law of Obligations and Contracts.