彼得·鄔斯賓斯基：P.D.Ouspensky（1887-1947）齣生於俄羅斯，年輕時就開始對宇宙論，數學和哲學進行深入的探索和研究，1912年發錶瞭《第四維》，1914年發瞭《第三工具》，《宇宙的新模型》，給西方文化帶來瞭巨大的衝擊。從東方旅行迴到俄羅斯以後，他作瞭數次以“尋找奇跡”為題的公開演講，影響深遠。1915年他在聖彼得堡遇到瞭葛吉夫，開始研究“第四道”係統。在同葛吉夫一起工作幾年以後，他在英國開辦瞭另一所學校，繼續傳授“第四道”係統。他去世以後，他的一些"第四道"著作被陸續齣版：第四道係統簡介《人可能進化的心理學》，描述跟葛吉夫共同工作的記錄《尋找奇跡》，以及他與學生間進行的問答形式的記錄《第四道》。

他的傳授以慎密的理性思維著手。

A new edition of the groundbreaking spiritual treasure, with a foreword by bestselling author Marianne Williamson . Since its original publication in 1949, In Search of the Miraculous has been hailed as the most valuable and reliable documentation of G. I. Gurdjieff's thoughts and universal view. This historic and influential work is considered by many to be a primer of mystical thought as expressed through the Work, a combination of Eastern philosophies that had for centuries been passed on orally from teacher to student. Gurdjieff's goal, to introduce the Work to the West, attracted many students, among them Ouspensky, an established mathematician, journalist, and, with the publication of In Search of the Miraculous, an eloquent and persuasive proselyte. Ouspensky describes Gurdjieff's teachings in fascinating and accessible detail, providing what has proven to be a stellar introduction to the universal view of both student and teacher. It goes without saying that In Search of the Miraculous has inspired great thinkers and writers of ensuing spiritual movements, including Marianne Williamson, the highly acclaimed author of A Return to Love and Illuminata. In a new and never-before-published foreword, Williamson shares the influence of Ouspensky's book and Gurdjieff's teachings on the New Thought movement and her own life, providing a contemporary look at an already timeless classic.