See H. W. Dresser, A History of the New Thought Movement (1919); C. S. Braden, Spirits in Rebellion: The Rise and Development of New Thought (1963); M. A. Larson, New Thought or a Modern Religious Approach (1985).
Mind-healing movement that originated in the U.S. in the 19th century. Its earliest proponent, Phineas P. Quimby (1802–66), was a mesmerist who taught that illness is mental. New Thought was influenced by philosophers ranging from Plato to Emanuel Swedenborg, Georg Wilhelm Friedrich Hegel, and Ralph Waldo Emerson and in turn influenced Mary Baker Eddy's Christian Science. The International New Thought Alliance (formed 1914) asserts that sin and illness stem from incorrect thinking. New Thought groups emphasize Jesus as a teacher and healer and proclaim his kingdom as being within each person.
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Although New Thought is neither monolithic nor doctrinaire, in general modern day adherents of New Thought believe that God is "supreme, universal, and everlasting", that divinity dwells within each person and that we are all spiritual beings, and that "the highest spiritual principle [is] loving one another unconditionally . . . and teaching and healing one another", and that "our mental states are carried forward into manifestation and become our experience in daily living".
The three major, but distinct, religious denominations within the New Thought movement are Unity Church, Religious Science, and the Church of Divine Science.
...for the sake of having a brief designation, I will give the title of the "Mind-cure movement." There are various sects of this "New Thought," to use another of the names by which it calls itself; but their agreements are so profound that their differences may be neglected for my present purpose, and I will treat the movement, without apology, as if it were a simple thing.
It is a deliberately optimistic scheme of life, with both a speculative and a practical side. In its gradual development during the last quarter of a century, it has taken up into itself a number of contributory elements, and it must now be reckoned with as a genuine religious power. It has reached the stage, for example, when the demand for its literature is great enough for insincere stuff, mechanically produced for the market, to be to a certain extent supplied by publishers -- a phenomenon never observed, I imagine, until a religion has got well past its earliest insecure beginnings.
One of the doctrinal sources of Mind-cure is the four Gospels; another is Emersonianism or New England transcendentalism; another is Berkeleyan idealism; another is spiritism, with its messages of "law" and "progress" and "development"; another the optimistic popular science evolutionism of which I have recently spoken; and, finally, Hinduism has contributed a strain. But the most characteristic feature of the mind-cure movement is an inspiration much more direct. The leaders in this faith have had an intuitive belief in the all-saving power of healthy-minded attitudes as such, in the conquering efficacy of courage, hope, and trust, and a correlative contempt for doubt, fear, worry, and all nervously precautionary states of mind. Their belief has in a general way been corroborated by the practical experience of their disciples; and this experience forms to-day a mass imposing in amount.
The earliest identifiable proponent of what came to be known as New Thought was Phineas Parkhurst Quimby (1802–66), an American philosopher, mesmerist, healer, and inventor. Quimby developed a belief system that included the tenet that illness originated in the mind as a consequence of erroneous beliefs and that a mind open to God's wisdom could overcome any illness. During the late 19th century the metaphysical healing practices of Quimby mingled with the "Mental Science" of Warren Felt Evans, a Swedenborgian minister.
Notable pioneers in the movement also included Charles Fillmore, William Walker Atkinson, and the afore-mentioned Emma Hopkins, known as the "teacher of teachers".
In 1906, William Walker Atkinson (1862–1932) wrote and published Thought Vibration or the Law of Attraction in the Thought World. Atkinson was the editor of New Thought magazine and the author of more than 100 books on an assortment on religious, spiritual, and occult topics.
The following year, Elizabeth Towne, the editor of The Nautilus Magazine, a Journal of New Thought, published Bruce MacLelland's book Prosperity Through Thought Force, in which he summarized the "Law of Attraction" as a New Thought principle, stating "You are what you think, not what you think you are."
These magazines were used to reach a large audience. Nautilus magazine, for example, had 45,000 subsribers and a total circulation of 150,000. One Unity Church magazine, Wee Wisdom, was the longest-lived children's magazines in the United States, published from 1893 until 1991.
By 1916, the International New Thought Alliance had encompassed many smaller groups around the world, adopting a creed known as the "Declaration of Principles". The Alliance is held together by one central teaching: that people, through the constructive use of their minds, can attain freedom, power, health, prosperity, and all good, molding their bodies as well as the circumstances of their lives. The declaration was revised in 1957, with all references to Christianity removed, and a new statement based on the "inseparable oneness of God and Man".
Divine Science, Unity Church, and Religious Science are organizations which developed from the New Thought movement, which teach that Infinite Intelligence or God is the sole reality, sickness is the result of the failure to realize this truth, and healing is accomplished by the affirmation of the oneness of the human race with the Infinite Intelligence or God. They tend to reject the medical science explanations for many diseases and promote their ideas as a sort of alternative medicine.
John Bovee Dods (1795-1862), an early practitioner of New Thought, wrote several books on the idea that disease originates in the electrical impulses of the nervous system and is therefore curable by a change of belief. Later New Thought teachers, such as the early 20th century author, editor, and publisher William Walker Atkinson, accepted this premise. He connected his idea of mental states of being with his understanding of the new scientific discoveries in electromagnetism and neural processes.