Hoe does Stainbeck contrast the two men who have just arrived on the scene?

The relationship between the intelligent but weak George Milton and the retarded but strong Lennie Small is the focal point of Steinbeck's novella, and a surface reading strongly suggests that "friendship" or "personal commitment" is one of this work's salient themes. As the half-witted Lennie dutifully intones, the two men are distinguished from all of the other characters in the story "because I got you to look after me, and you got me to look after you, and that's why." (p.15).