Melanchthon was the spiritual heir of the South German Humanists, of men like Reuchlin, Jakob Wimpfeling, and Rodolphus Agricola, who represented an ethical conception of the humanities. The liberal arts and a classical education were for him paths, not only towards natural and ethical philosophy, but also towards divine philosophy. The ancient classics were for him in the first place the sources of a purer knowledge, but they were also the best means of educating the youth both by their beauty of form and by their ethical content. By his organizing activity in the sphere of educational institutions and by his compilations of Latin and Greek grammars and commentaries, Melanchthon became the founder of the learned schools of Evangelical Germany, a combination of humanistic and Christian ideals. In philosophy also Melanchthon was the teacher of the whole German Protestant world. The influence of his philosophical compendia ended only with the rule of the Leibniz-Wolff school. He started from scholasticism; but with the contempt of an enthusiastic Humanist he turned away from it and came to Wittenberg with the plan of editing the complete works of Aristotle. Under the dominating religious influence of Luther his interest abated for a time, but in 1519 he edited the Rhetoric and in 1520 the Dialectic. The relation of philosophy to theology is characterized, according to him, by the distinction between Law and Gospel. The former, as a light of nature, is innate; it also contains the elements of the natural knowledge of God which, however, have been obscured and weakened by sin. Therefore, renewed promulgation of the Law by revelation became necessary and was furnished in the Decalogue; and all law, including that in the form of natural philosophy, contains only demands, shadowings; its fulfillment is given only in the Gospel, the object of certainty in theology, by which also the philosophical elements of knowledge – experience, principles of reason, and syllogism – receive only their final confirmation. As the law is a divinely ordered pedagogue that leads to Christ, philosophy, its interpreter, is subject to revealed truth as the principal standard of opinions and life. Besides Aristotle's Rhetoric and Dialectic he published De dialecta libri iv (1528), Erotemata dialectices (1547), Liber de anima (1540), Initia doctrinae physicae (1549), and Ethicae doctrinae elementa (1550). Personal appearance and character There have been preserved original portraits of Melanchthon by three famous painters of his time –