Who does Montag meet while walking on the railroad tracks? What do they talk about?

Montag's walk along the railroad tracks is the classic symbolic
quest and he is rewarded at the end when he meets a group of learned men--mostly professors-- who
have remained on the fringes of society because they are the keepers of books. Remarkably, thes
men "keep" books in their memories and each man has memorized a book or two that they believe to
be valuable or essential to the human race. These men believe it is their responsibility to hold
what small bits of the past they can so that, perhaps, at some point in the future, when books
and men like themselves are valued, they will prepared and ready to help
rebuild.