The aim of this translation is the same as that of the original work. Each is the outcome of experience in university instruction in philosophy, and is intended to furnish a manual which shall be at once scientific and popular, one to stand midway between the exhaustive expositions of the larger histories and the meager sketches of the compendiums. A pupil of Kuno Fischer, Fortlage, J.E. Erdmann, Lotze, and Eucken among others, Professor Falckenberg began his career as Docent in the university of Jena.