Horatio W. Dresser (1866–1954) was a major leader in the New Thought movement, and the author of many important books on the subject. He grew up steeped in New Thought. His parents, Julius and Annetta Seabury Dresser, studied in New England with Phineas Parkhurst Quimby (1802-1866), the man to whom the origin of the New Thought movement is generally traced. Dresser was admitted to Harvard in 1891, dropped out in 1893 when his father died, returned in 1903 and completed his Ph.D. in 1907. In 1921, Dresser compiled Quimby’s manuscripts and made them available to readers in full for the first time. Dresser died on March 30, 1954 in Boston, Massachusetts.