Tertium Organum is a philosophical book written by P.D. Ouspensky, first published in 1912. The title refers to Aristotle's Organon, which was a treatise on logic and syllogism. Ouspensky's book is an attempt to present a new system of thought that goes beyond the limitations of traditional logic and reason. It explores the nature of reality and consciousness, and proposes a new way of understanding the world based on higher dimensions of existence. The book is divided into three parts, each of which builds on the previous one. The first part introduces the concept of higher dimensions and their relationship to human consciousness. The second part explores the implications of these ideas for science, philosophy, and religion. The third part presents a practical guide to applying these ideas in daily life. Throughout the book, Ouspensky draws on a wide range of sources, including Eastern mysticism, modern physics, and the works of philosophers such as Kant and Hegel. Tertium Organum is a challenging and thought-provoking work that has influenced many thinkers in the fields of philosophy, psychology, and spirituality.This Is A New Release Of The Original 1920 Edition.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.