That's the NYPD, though, he thinks. They give you a medal for being stupid, take your badge for being smart.
-- Malone (Chapter 1)

Importance: Malone thinks that it is silly for cops to get medals for being careless and getting shot, and he thinks that it is ridiculous that any cop should lose his job for protecting himself. The quote shows off his attitude and dark humor.

We're landscapers. Our job is to keep the jungle from growing back.
-- Monty (Chapter 2)

Importance: This is how Monty describes the job of the elite task force, which handles violent crimes of all varieties, New York used to be a full grown jungle, but over the past few decades it has been made much safer. But there is still a hidden undercurrent of violence, and it is the force's job to keep the jungle from growing back.

Nine/Eleven saved the mafia.
-- Malone (Chapter 4)

Importance: Malone says that the mafia was almost completely...