Prentice Mulford (April 5, 1834 – c. May 30, 1891) was an American literary humorist, philosopher, and pioneering figure in the New Thought movement whose ideas about the creative power of thought laid the groundwork for what would later be called the Law of Attraction. Born and raised in the maritime community of Sag Harbor, New York, Mulford left home at twenty-two aboard a clipper ship bound for San Francisco, where he spent sixteen adventurous years working as a sailor, gold miner, teacher, and struggling writer. It was during this formative period that he developed the deeply personal, experience-rooted philosophy of mind that would define his legacy.
After returning east, Mulford built a small cabin in the New Jersey woods and devoted himself to writing essays on the transformative power of human thought. His landmark collection Your Forces and How to Use Them (1888), published in six volumes, introduced readers to the radical idea that mental attitude directly shapes external reality — including health, prosperity, and personal fulfillment. Decades before the term "Law of Attraction" became widely known, Mulford articulated that thoughts are living forces capable of drawing circumstances into being. His other notable works, including Thoughts Are Things (1889), carried these ideas to a growing audience hungry for practical spiritual guidance outside institutional religion.
Mulford's influence on Nightingale-Conant's tradition of personal development is profound and direct. His insistence that individuals possess untapped inner forces — and that cultivating the right mental habits could unlock extraordinary potential — is the philosophical bedrock on which the modern success and self-improvement genre was built. Figures such as William Walker Atkinson dedicated their earliest works to Mulford, acknowledging him as a founding voice. Though he died in mysterious circumstances in 1891, discovered adrift in his boat White Crow on Sheepshead Bay, his writings have never gone out of print and continue to inspire readers seeking to harness the power of positive thought.
