William James (January 11, 1842 – August 26, 1910):
A pioneering American psychologist and philosopher who was trained as a physician. He was an academic at Harvard for his whole career. He was the first lecturer to offer a psychology course in the U.S.
He wrote influential books on the young science of psychology, educational psychology, psychology of religious experience and mysticism, and on the philosophy of pragmatism.
He was the brother of novelist Henry James and of diarist Alice James. In the summer of 1878, James married Alice Gibbens.
James interacted with a wide array of writers and scholars throughout his life, including his godfather Ralph Waldo Emerson, his godson William James Sidis, as well as Charles Sanders Peirce, Bertrand Russell, Josiah Royce, Ernst Mach, John Dewey, Macedonio Fernández, Walter Lippmann, Mark Twain, Horatio Alger, Jr., Henri Bergson and Sigmund Freud.