The Renaissance and the humanistic movement also reveal Jewish influences at work. The spirit of liberty abroad in the earth passed through the halls of Israel, clearing the path thenceforth to be trodden by men. Again the learned were compelled to engage the good offices of the Jews, the custodians of biblical antiquity. The invention of the printing press acted as a wonderful stimulus to the development of Jewish literature. The first products of the new machine were Hebrew works issued in Italy and Spain. Among the promoters of the Renaissance, and one of the most thorough students of religio-philosophical systems, was Elias del Medigo, the friend of Pico della Mirandola, and the umpire chosen by the quarrelling factions in the University of Padua. John Reuchlin, chief of the humanists, was taught Hebrew by Obadiah Sforno, a _savant_ of profound scholarship, who dedicated his "Commentary on Ecclesiastes" to Henry II. of France. Abraham de Balmes was a teacher at the universities of Padua and Salerno, and physician in ordinary to Cardinal Dominico Grimani. The Kabbala was made accessible to the heroes of the Renaissance by Jochanan Alemanno, of Mantua, and there is pathos in the urgency with which Reuchlin entreats Jacob Margoles, rabbi of Nuremberg, to send him Kabbalistic writings in addition to those in his possession. Reuchlin's good offices to the Jews--his defense of them against the attacks of obscurantists--are a matter of general knowledge. Among the teachers of the humanists who revealed to them the treasures of biblical literature the most prominent was Elias Levita, the introducer, through his disciples Sebastian Münster and Paul Fagius, of Hebrew studies into Germany. He may be accounted a true humanist, a genuine exponent of the Renaissance. His Jewish coadjutors were Judah Abrabanel (Leo Hebræus), whose chief work was _Dialoghi di Amore_, an exposition of the Neoplatonism then current in Italy; Jacob Mantino, physician to Pope Paul III.; Bonet di Lattes, known as a writer on astronomical subjects, and the inventor of an astronomical instrument; and a number of others.