Aber, Mary Alling, Souls. California: The Logos Fraternity, 1894.
Adler, Alfred, Understanding Human Nature. translated by W. Beran Wolfe. Greenwich, Conn.: Fawcett, 1927.
Assagioli, Roberto, "Loving Understanding." Ojai: MGNA :Publications, 1979.
Assagioli, Roberto, Psychosynthesis. New York: Viking, 1965.
Aristotle, On the Soul translated by J. A. Smith. Chicago: Encyclopaedia Brittanica, 1952.
Augustine, "On the Immortality of the Soul" translated by George G. Leckie. Appleton-Century, 1938.
Marcus Aurelius, Meditations translated by George Long. Chicago: Encyclopaedia Britannica, 1952.
Baha'u'llah and Abdu'l-Baha, Baha'i World Faith. Wilmette, Illinois: Baha'i Publishing, 1943.
Bailey, Alice A., From Intellect to Intuition. New York: Lucis Publishing, 1960.
Bailey, Alice A., The Soul and Its Mechanism: The Problem of Psychology. New York: Lucis Publishing, 1965.
Beck, Sanderson, Living In God's Holy Thoughts. New York: Baraka Press, 1976.
Berkeley, George, The Principles of Human Knowledge.
Berkeley, George, Three Dialogues Between Hylas and Philonous.
Besant, Annie, The Ancient Wisdom: An Outline of Theosophical Teachings. London: Theosophical Publishing Society, 1897.
The Oxford Annotated Bible with the Apocrypha Revised Standard Version edited by Herbert G. May and Bruce M. Metzger. New York: Oxford University, 1965.
Blavatsky, H. P., Isis Unveiled: A Master-Key to the Mysteries of Ancient and Modern Science and Theology, Vol. I. Science; Vol. II. Theology. London: Theosophical Publishing House, 1923.
Boethius, The Consolation of Philosophy translated by S. J. Tester. Cambridge: Harvard University, 1973.
Brunton, Paul, The Quest of the Overself. New York: Dutton, 1938.
Bucke, Richard Maurice, Cosmic Consciousness. New York: Dutton, 1923.
Budge, E. A. Wallis, The Book of the Dead (The Papyrus
of Ani) Egyptian Text transliteration and translation. New York: Dover, 1967.
Carus, Paul, The Soul of Man. Chicago: Open Court Publishing, 1905.
Edgar Cayce's Story of Jesus selections, arrangement and comments by Jeffrey Furst. New York, Berkeley Medallion, 1968.
Chan, Wing-tsit, A Source Book in Chinese Philosophy. Princeton, 1963.
Chuang-tzu: Genius of the Absurd arranged from the work of James Legge by Clae Waltham. New York: Ace Books, 1971.
Dante Alighieri, The Banquet (II Convito) translated by Katharine Hillard. London: Kegan Paul, Trench & Co, 1889.
Descartes, Rene, Discourse on the Method of Rightly Conducting the Reason translated by Elizabeth S. Haldane and G. R. T. Ross. Chicago: Encyclopaedia Britannica, 1952.
Descartes, The Passions of the Soul translated by Lowell Bair. New York: Bantam Books, 1961.
Meister Eckhart a modern translation by Raymond Bernard Blakney. New York: Harper & Brothers, 194I.
Emerson, Ralph Waldo, The Complete Writings of. New York: Wm. H. Wise & Co., 1929.
Epictetus, The Discourses translated by George Long. Chicago: Encyclopaedia Britannica, 1952.
Epictetus, Golden Sayings and Fragments translated by Hastings Crossley. New York: Collier & Son, 1937.
Epictetus, The Manual translated by P. E. Matheson. Clarendon Press.
The Farther Shore: An Anthology of World Opinion on the Immortality of the Soul ed. Griffin and Hunt. Boston, Houghton Mifflin, 1934.
Frazer, James G., The New Golden Bough abridged by Gaster, Theodor H. New York: Mentor, 1959.
Froebel, Friedrich, The Education of Man translated by W. N. Hailman. New York: D. Appleton and Company, 1887.
Gandhi, M. K., Non-Violent Resistance (Satyagraha). New York: Shocken Books, 1951.
The Gita with text, translation and notes compiled from Sri Aurobindo's Essays on the Gita, edited by Anilbaran Roy. Pondicherry, India, 1946.
The Gospel According to Thomas Coptic text established and translated by Guillaumont, Puech, Quispel, Till, and Al Masih. New York: Harper & Row, 1959.
Huxley, Aldous, The Perennial Philosophy. New York: Harper & Row, 1945.
Iyer, Raghavan, The Moral and Political Thought of Mahatma Gandhi. Oxford: Oxford University Press, 1973.
James, William, The Principles of Psychology. Chicago: Encyclopaedia Britannica, 1952.
John-Roger, The Consciousness of Soul. Los Angeles: MSIA, 1975.
John-Roger, Inner Worlds of Meditation. New York: Baraka Press, 1976.
John-Roger, The Journey of a Soul. Los Angeles: MSIA, 1975.
Johnson, Julian, The Path of the Masters. (Punjab) India: Radha Soami Satsang Beas, 1939 .
Jones, Gladys V., The Flowering Tree. New York: 'William Sloane, 196 5 .
Jung, C. G., Man and his Symbols. New York: Doubleday, 1964.
Jung, C. G., Psychological Types translated by H. G. Baynes and R. F. C. Hull. Princeton University Press, 1971.
Jung, C. G., The Structure and Dynamics of the Psyche translated by R. F. C. Hull. New York: Bollingen, 1960.
Jung, C. G., Symbols of Transformation translated by R. F. C. Hull. New York: Bollingen, 1956.
Kirk, G. S. and Raven, J. E., The Presocratic Philosophers: A Critical History with a selection of texts. Cambridge University, 1957.
Diogenes Laertius, Lives of Eminent Philosophers translation by R. D. Hicks in Two Volumes. Cambridge: Harvard University, 1972 .
Leadbeater, C. W., A Textbook of Theosophy. Madras, India: Theosophical Publishing, 1956.
Lin Yutang, The Wisdom of China and India. New York: Random House, 1942.
Locke, John, An Essay Concerning Human Understanding.
Maeterlinck, Maurice, The Treasure of the Humble translated by Alfred Sutro. New York: Dodd, Mead and Company, no date.
Maharaj Sardar Bahadur Jagat Singh Ji, The Science of the Soul. Punjab, India: Radha Soami Satsang, 1972.
Meher Baba, Listen, Humanity narrated and edited by D. E. Stevens. New York: Dodd, Mead & Company, 1957.
Meher Baba Speaks: The Theme of Creation and Its Purpose. New York: Dodd, Mead & Company, 1955.
McDaniel, Ivan G., Lamp of the Soul. Quakertown: Philosophical Publishing, 1942.
Montessori, Maria, The Montessori Method translated by Anne E George. New York: Shocken Books, 1964.
Pascal, Blaise, Pensées translated by W. F. Trotter. Chicago: Encyclopaedia Britannica, 1952.
Patanjali, The Yoga Aphorisms of: How to Know God translated with a new commentary by Swami Prabhavananda and Christopher Isherwood. New York: Signet, 1953.
Plato, The Dialogues of translated by B. Jowett. New York: Random House, 1920.
Plotinus, Six Enneads translated by Stephen MacKenna and :B. S. Page. Chicago: Encyclopaedia Britannica, 1952.
Plutarch's Moralia Volume VII translated by Phillip H. De Lacy and Benedict Einarson. Cambridge: Harvard University, 1959.
Powell, Arthur E., The Causal Body and the Ego. London: Theosophical Publishing House, 1928.
Radhakrishnan, Sarvepalli, and Charles A. Moore, A Sourcebook In Indian Philosophy. Princeton, 1957.
Ramanathan, The Culture of the Soul Among Western Nations. New York: G. P Putnam's Sons, 1906.
Rank, Otto, Psychology and the Soul translated by William D. Turner. Philadelphia: University of Pennsylvania Press, 1950.
Reyes, Benito F., Cybernetics of Consciousness: Theory and Practice of Meditation. Ojai: World University, 1978.
Reyes, Benito F., Scientific Evidence of the Existence of the Soul. Wheaton, Ill.: Theosophical Publishing, 1970.
Rohde, Erwin, Psyche: The Cult of Souls & Belief in Immortality among the Greeks translated by W. B. Hillis. New York: Harper & Row, 1966.
Teachings of Sri Satya Sai Baba. Lakemont, Georgia: CSA Press, 1974.
Schuré, Edouard, The Great Initiates: A Study of the Secret History of Religions translated from the French by Gloria Rasberry. New York: St. George Books, 1961.
Singh, Kirpal, The Crown of Life: A Study in Yoga. Delhi, India: Ruhani Satsang, 1970.
St. John of the Cross, Dark Night of the Soul translated by E. Allison Peers. New York: Image Books, 1959.
St. Teresa of Avila (Autobiography) The Life of Teresa of Jesus translated by E. Allison Peers. New York: Image Books, 1960.
Autobiography of St. Therese of Lisieux: The Story of a Soul translated by John Beevers. New York: Image Books, 1957.
Steiger, Brad, In My Soul I Am Free: The Incredible Paul Twitchell Story. New York: Lancer Books, 1968.
The Sufi Message of Hazrat Inayat Khan, Volume 2. London: Barrie Books, 1960.
Swamiji Maharaj, The Sar Bachan: The Yoga of the Sound Current translated by Sardar Sewa Singh. Beas, India: Radha Swami Sat Sang, 1955.
Twitchell, Paul, Eckankar: The Key to Secret Worlds. New York: Lancer Books, 1969.
Twitchell, Paul, The Tiger's Fang. New York: Lancer Books, 1969.
Underhill, Evelyn, Mysticism: A Study in the nature and development of Man's spiritual consciousness. Cleveland: World Publishing, 1955.
The Thirteen Principal Upanishads translated from the Sanskrit with an outline of the philosophy of the Upanishads by Robert Ernest Hume. London: Oxford, 1931.
Wilder, Alexander, M. D. "The Soul" p. 459-473 Lucifer. A Theosophical Magazine edited by Annie Besant, Volume X March-August, 1892. London: Theosophical Publishing.
Yogananda, Paramahansa, Autobiography of a Yogi. Los Angeles: Self-Realization Fellowship, 1956.
Yogananda, Paramahansa, The Master Said. Los Angeles: Self-Realization Fellowship, 1952.
Yukteswar Giri, The Holy Science. Los Angeles: Self-Realization Fellowship, 1949.