U is for Unworthy
Montag thinks that he is unworthy to be apart of Granger's group of friends. Montag thinks he has been an idiot all his life and never knew the true value in books until recently. Granger knew all about books and memorized them too, and Montag only knew about a few books. The amount of books Montag knew about didn't matter to Granger, the fact that he understood the value of them is what matters.
W is for Wisdom
Granger is a man full of wisdom. He knows the true meaning of books, and he knows that they don't destroy society. Granger knows what it means to be different and happy. Granger is a man who understands what it means to know.