>> a true role model. to have three sons speak about you that way tells you everything you need to know about the man in addition to what we saw in public. obviously, this is very hard day for them. they know it was coming. because of his health. but it's always a shock when you finally get there. i think we have some more tape. you know, there's endless fascination about father and son. each of them used to say to me, don't ask me about the relationship. we don't do psychobabble in this family. but we had an opportunity to talk to president george w. bush, 43, about his father. give me some words to describe your father. >> humble. driven.