When I was a student at Sarah Lawrence College in the 1970s, a classmate showed me some nude Polaroids -- the selfies of the day -- that she and other classmates had taken of themselves and invited me to join them.
Read MoreCongresswoman Katie Hill’s promising legislative career has been derailed by her sexual indiscetions — and perhaps her failure to understand what it means truly to live in the moment. Photograph courtesy U.S. House of Representatives