how does the good or evil in will's life strengthen or weaken his character

Will is a classic example of an innocent who gains knowledge of evil. He is Jim's complementary opposite. Whereas Jim begins the book with a store of morbid cynicism, Will begins the book with patience, modesty and acceptance; and whereas Jim must learn the knowledge Will already has, so too Will must encounter evil. He is reluctant to do so, preferring to look away at the dreadful things that he and Jim see while Jim stares with fascination, but eventually he is able to face his fears and accept the darkness in humanity without flinching.

Will had a deep belief that happiness and goodness are intertwined. He equated goodness with happiness. In the quote below, his father Charles gives him a lesson and most likely succeeds in taking away a bit of his bright-eyed innocence as well. Throughout the story, Will becomes more outspoken, even outgoing. He's a reader, who indulges in deep thought (as we meet him in the beginning). But later, the boy of inaction becomes a young man of action in order to protect his father and his friend Jim.

"Sometimes the man who looks happiest in town, with the biggest smile, is the one carrying the biggest load of sin. There are smiles and smiles; learn to tell the dark variety from the light. The seal-barker, the laugh-shouter, half the time he's covering up. He's had his fun and he's guilty. And men do love sin, Will, oh how they love it, never doubt, in all shapes, sizes, colors, and smells."

what page number is the quote from

Page 135