Sometimes I hate having a conscience, and a stupidly thorough sense of honor.
-- Harry Dresden (Chapter 1)

Importance: This quote illustrates part of the reason why Dresden refused to tell Kim Delaney about the circle of protection she wanted to know how to create, the thing that would get her killed later in the novel.

She had been protecting me. I hadn’t even considered what those rumors Marcone had spread might do to anyone besides myself.
-- Harry Dresden (Chapter 4)

Importance: This quote illustrates Dresden’s realization that the rumors about him and Marcone have affected Murphy, causing her to come under an internal affairs investigation.

I saw that he was the leader of the lycanthropes called the Streetwolves, men and women with the minds and soul of beasts, and that he was aging, was not as strong as he once had been. Others, like the woman earlier, were beginning to challenge his authority.
-- Harry Dresden (Chapter 9)

Importance: This is the first meeting...