Humor is important for is pacing. If your whole book is just drama drama drama, it's going to wear down the reader.
Patrick RothfussJoss [Whedon] is an excellent storyteller. It really doesn't matter what medium he's working in.
Patrick RothfussThe cost of a loaf is a simple thing, and so a loaf is often sought, but some things are past valuing: laughter, land, and love are never bought.
Patrick Rothfuss