What was the quote about the Socs being a gang of wolves and the greasers being a pack or something along those lines?

From the text:

"Dally's okay," Johnny said defensively, and I nodded. You take up for your buddies, no matter what they do. When you're a gang, you stick up for the members. If you don't stickup for them, stick together, make like brothers, it isn't a gang any more. It's a pack. A snarling, distrustful, bickering pack like the Socs in their social clubs or the street gangs in New York or the wolves in the timber. "He's tough, but he's a cool old guy."