Some women can be fooled all of the time, and all women can be fooled some of the time, but the same woman can't be fooled by the same man in the same way more than half of the time.
Bio: Samuel Morison Brown, Scottish chemist, poet and essayist. He was born at Haddington, East Lothian, the fourth son of Samuel Brown, the founder of itinerating libraries, and grandson of John Brown, author of the Self-Interpreting Bible.