2018 Reprint of 1956 Edition. Full facsimile of the original edition, not reproduced with Optical Recognition software. Text in English and Latin on opposing pages. This scholarly bilingual edition is for the student of Bonaventure who requires consultation with the standard Latin edition. This is one of the most distinctly Franciscan of Bonaventure's texts. It was conceived in the wilderness of Mount Alverna where St. Francis received the stigmata. This text is meant to guide a generation of Franciscan clerics through the medium of a new scientific culture, while reminding them that Franciscan life is aimed at true devotion. In this masterpiece, Bonaventure recasts Augustinian illumination along distinctly Franciscan lines.