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: Michael Rowan-Robinson FRAS FInstP is an astronomer, astrophysicist and Professor of Astrophysics at Imperial College London. He previously served as head of the astrophysics group until May 2007 and from 1981 to 1982, and as Gresham Professor of Astronomy.