one of william halsted's colleagues, the great internist, separate man from animals is a desire to take from us. and it's true. it's true. we all want something that will make our lives better, that would make my sciatic pain less, that would make us less nervous, we all want a simple pill, pop it, gone. and i think that's a very human phenomenon that also conspires into office, that the quest to heal ourselves with some kind of the drug, some feel. >> part of what makes this all fantastically one of the best i've had in a decade actually is that the way you carry out these two different characters and the differences. and i'm wondering if you tell us more about halsted seems to be costly on and off the wagon if you will wear as freud freud at a certain point stops or seems to, so tell us about those differences. >> that is another wonderful, you can find two people in hospital more at odds, more different, psychiatrist or psychoanalysis and the surgeon. they are different species. my medical school report terms as howard is not a surgeon. for years i didn't realize that was not a couns