Aleister Crowley (1875-1947), was a magician, mountaineer, poet, and philosopher. He created the religious system known as Thelema. Many of Thelema's various organizational incarnations are still active. Crowley considered Theosophy and the Golden Dawn to be Thelema's parents, and acknowledged Rabelais as the source for its creed, "Do what thou wilt". Crowley influenced Dion Fortune, Israel Regardie, Gardnerian Witchcraft, Chaos Magic, and many other 20th century occultists and movements. He considered himself a major literary figure but history has not shared his view.