"Starting epidemics requires concentrating resources on a few key area. The Law of the Few says that Connectors, Mavens, and Salesman are responsible for starting word-of-mouth epidemics, which means that if you are interested in starting a word-of-mouth epidemic , your resources ought to be solely concentrated on these three groups. No one else matters."

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Why can't I go to Idris with you, then? Because it's not safe for you there O and it's safe for me here? I've been nearly killed almost a dozen times in the past month. That's because Valentine has been concentrating on the two Mortal Instruments that were here. He's going to shift his focus to Idris now. We all know it-- We're hardly as certain of anything as all that. And the Clave wants to meet Clarissa. You know that, Jace. The Clave can screw itself.

— Cassandra Clare