Personality test based on C. Jung and I. Briggs Myers type theory

I am an INTP. What personality type are you? Some famous INTPs are: Socrates Rene Descartes Blaise Pascal Sir Isaac Newton U.S. Presidents: James Madison John Quincy Adams John Tyler Dwight D. Eisenhower Gerald Ford William Harvey (pioneer in human physiology) C. G. Jung, author of Psychological Types, etc.) William James Albert Einstein Charles Darwin Tom Foley (1989-1995: Speaker of the House--U.S. House of Representatives) Henri Mancini Bob Newhart