This episode is part of our exploration into the 40-year Pathways archive. It originally aired on KBOO 90.7 fm on January 6, 2008.

Leonard Shlain is the author of the book, Sex, Time and Power: How Women’s Sexuality Shaped Human Evolution. Dr. Shlain is the author of several books including, The Alphabet Versus the Goddess: The Conflict Between Word and Image and Art & Physics: Parallel Visions in Space, Time & Light. He is the chief of laparoscopic surgery at California Pacific Medical Center in San Francisco and lives in the Bay Area.