3. 1  the theory that the universe has been ruled from its origins by two conflicting powers, one good and one evil, both existing as equally ultimate first causes. 2  the theory that there are two personalities, one human and one divine, in Christ.
Henry David Thoreau , ( born July 12 , 1817 , Concord , Massachusetts , U.S. âdied May 6 , 1862 , Concord ) American essayist , poet , and practical philosopher , renowned for having lived the doctrines of Transcendentalism as recorded in his masterwork , Walden ( 1854 ) , and for having been a vigorous advocate of civil liberties , as evidenced in ...
He was the third child of a feckless small businessman named John Thoreau and his bustling, talkative wife, Cynthia Dunbar Thoreau. His parents sent him in 1828 to Concord Academy, where he impressed his teachers and so was permitted to prepare for college.