Editorial Reviews - Cartesianism From the Publisher 1925. Contents: Rene Descartes; exposition of his philosophical system; its constructive aspect; critical examination; criticism; occasionalism; ontologism; pre-established harmony of Leibnitz and the pantheism of Spinoza; some practical lessons to be learned from Cartesianism. Synopsis 1925. Contents: Rene Descartes; exposition of his philosophical system; its constructive aspect; critical examination; criticism; occasionalism; ontologism; pre-established harmony of Leibnitz and the pantheism of Spinoza; some practical lessons to be learned from Cartesianism.