Aldous Huxley Watt:. Routledge, 1975 — 366-bet. ISBN 978-0-415-15915-9. „Inge's agreement with Huxley on several essential points indicates the respect Huxley's position commanded from some important philosophers ... And now we have a book by Aldous Huxley, duly labelled The Perennial Philosophy. ... He is now quite definitely a mystical philosopher.“
Sion, Ronald T.. Aldous Huxley and the Search for Meaning: A Study of the Eleven Novels. McFarland & Company, Inc., 2010 — 2-bet. ISBN 978-0-7864-4746-6. „Aldous Huxley, as a writer of fiction in the 20th century, willingly assumes the role of a modern philosopher-king or literary prophet by examining the essence of what it means to be human in the modern age. … Huxley was a prolific genius who was always searching throughout his life for an understanding of self and one's place within the universe.“
Sawyer, Dana. Aldous Huxley: A Biography. Crossroad Publishing Company, 2002 — 187-bet. ISBN 978-0-8245-1987-2. Qaraldi: 2016-yil 10-aprel. „Huxley was a philosopher but his viewpoint was not determined by the intellect alone. He believed the rational mind could only speculate about truth and never find it directly.“