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: Frank N.J. von Hippel is an American physicist, born in 1937. He is Professor and Co-Director of Program on Science and Global Security at Princeton University and Woodrow Wilson School of Public and International Affairs.