"You know where it comes from? It comes from a tremendous sense of your own self-worth," Oprah says. "You know that your own value is within yourself and you don't have to get it outside yourself."
This sense of self-worth may have fueled Shirley's independent nature, which she says manifests itself in her past relationships and life today. "I felt very comfortable being alone," she says. "That's why I live alone now. That's why I never had a conventional marriage. That's why I loved to travel [alone]."
Watch Shirley explain why she had an unconventional open marriage for years with her ex-husband, Steve Parker