"Never hug and kiss them, never let them sit on your lap. ... The end result is a happy child. Free as air, because he has mastered the stupidly simple demands society makes upon him." Psychologists know best, of course, and in the 1950s they warned parents about the dangers of too much love. Besides, what was 'love' anyway? Just a convenient name for children seeking food and adults seeking sex. It took an outsider scientist to challenge this. When Harry Harlow began his experiments on mother love he was more than just outside the mainstream, though. He was a deeply unhappy man who knew in his gut the truth about what love -- and its absence -- meant, and set about to prove it. His experiments and results shocked the world.