Slim is so respected and admired on the ranch that even Curley listens to him. When Lennie smashes Curley's hand, Slim is the one who intercedes and tells Curley he will not have George and Lennie fired. Slim understands Curley's fear of ridicule, and he uses that fear to help George and Lennie. Slim also inspires confidences because he is not judgmental. When George first meets Slim, George tells him about Lennie's troubles in Weed. George senses in Slim a person of intelligence and empathy. Slim is a character which interacts with everyone and easily connects to them, he understands their feelings. His insight, intuition, kindness and natural authority draw the other ranch hands automatically towards him, and he is significantly the only character to fully understand the bond between George and Lennie. I agree that Slim is not handicapped in some way. Lennie's personality is like that of a child. He is innocent and mentally handicapped with no ability to understand abstract concepts like death. While he acts with great loyalty to George, he has no comprehension of the idea of "loyalty." For that reason, he often does not mean to do the things that get him into trouble, and once he does get into trouble, he has no conscience to define his actions in terms of guilt. Lennie only defines them in terms of consequences: "George is going to give me hell" or "George won't let me tend the rabbits." He is devoted to George like a dog is devoted to its master, and he tries to follow George's commands. There is a childlike wonder in Lennie that can be seen when he first sees the pool of water and slurps down huge gulps of water like a horse.
Candy is "a tall,