lines," a look at what we can learn from traditional societies with pulitzer prize winning author jared diamondlcome, i'm barry kibrick. professor diamond won the pulitzer for his best-selling book "guns, germs and steel." now he returns to our past in search of a better future. with his book, "the world until yesterday," he highlights the many crucial lessons to be learned from our ancestors so that we can live better lives today. linda ellerbee: i'm a writer today because i was a reader when i was 11 years old, and it was... deepak chopra: you do not need to prove your state of happiness to anybody. warren christopher: most