youthful going on here. >> i don't know if it was youthful. he was popular in my youth. >> larry: how do you account for their longevity? >> i think they have a sound that people like and a sort of charisma that appeals to people. >> larry: okay, we have a funny item from the book. the royal family is not without its quirks. when prince charles and camilla, duchess of cornwall came to visit us, they requested glasses of ice. the staff dutifully produced them and the prince added a splash of straight gin so they might be fortified for the hour or more before hands. >> i assume it was straight gin. i don't know what it was. >> larry: it wasn't water. you're working with your husband on the george w. bush institute? >> that's right. it's going to be part of the bush library. it will be at smu. we already started the institute