Ficinus, who was born in Florence in 1433, and died in 1499, the accomplished translator of Plato, was a man of note; it was mainly due to him that the study of Neo-Platonism, as presented by Proclus and Plotinus, was again revived. Ficinus wrote also a Platonic Theology. One of the Medici in Florence, Cosmo II., went so far as to found a Platonic Academy even in the fifteenth century. These Medici, the elder Cosmo, Lorenzo, Leo X., Clement VII., were patrons of all the arts and sciences, and made their court the resort of classical Greek scholars.[60] Two counts of the name of Pico della Mirandola—Giovanni, and Giovanni Francesco, his nephew—were influential rather by virtue of their marked personality and their originality; the elder propounded nine hundred theses, fifty-five of which were taken from Proclus, and invited philosophers one and all to a solemn discussion of the same; he also in princely fashion undertook to pay the travelling expenses of those at a distance.[61] 3. GASSENDI, LIPSIUS, REUCHLIN, HELMONT. Somewhat later, and specially by Gassendi, the opponent of Descartes, the atom theory of Epicurus was again revived. As a development therefrom the theory of molecules maintained its place thenceforth in physical science. The revival of Stoic philosophy due to Lipsius was not so clearly evidenced. In Reuchlin (Kapnio), who was born at Pforzheim in Swabia in 1455, and who was himself the translator of several comedies of Aristophanes, the Cabalistic philosophy found a defender. He endeavoured also to reconstruct the Pythagorean philosophy proper; but he mingled with it much that is vague and mysterious. There was in hand a project to destroy all Hebrew books in Germany by an imperial decree, as had been done in Spain; Reuchlin deserves great credit for having prevented this.[62] On account of the entire lack of dictionaries, the study of the Greek language was rendered so difficult that Reuchlin travelled to Vienna for the purpose of learning Greek from a Greek. Later on we find many profound thoughts in Helmont, an Englishman, who was born in 1618, and died in 1699.[63] All these philosophies were carried on side by side with belief in Church dogmas, and without prejudice thereto; not in the sense in which the ancients conceived them. A mass of literature exists on this subject, containing the names of a multitude of philosophers, but it is a literature of the past, without the vitality characteristic of higher principles; it is in fact not a true philosophy at all, and I shall therefore not dwell any longer upon it. 4. CICERONIAN POPULAR PHILOSOPHY.