Maybe not in your copy of the book but in my copy on page 36 this is what Shane says:
"Listen, Bob. A gun is just a tool. No better and no worse than any other tool, a shovel--or an axe or a saddle or a stove or anything. Think of it always that way. A gun is as good--and as bad--as the man who carries it. Remember that."
This is one reason why you won't be seeing Shane as a reading assignment in public schools today. BTW, for you home schoolers, I HIGHLY RECOMMEND Shane as a reading assignment.