: ''Christ either deceived mankind by conscious fraud, or He was Himself deluded and self-deceived, or He was Divine. There is no getting out of this trilemma. It is inexorable.''<ref>William Knight, Colloquia Peripatetica, 1870.</ref>
The argument was popularized by the famous twentieth century Christian theologian and author [[C.S. Lewis]]. He outlined the argument in a 1943 BBC radio broadcast and it later formed the basis of his book [[Mere Christianity(book)|Mere Christianity]].<ref>Lewis, C.S., Mere Christianity, London: Collins, 1952, p54-56.</ref>