chapter 9 billy has special reletinship with grandpa what ways does grandpa shows wisdom

Grandpa teaches Billy about the necessity of 'determination and will power," he instructs him in how to cut down the tree even when he wants to give up, and he teaches him the value of patience when he shows him how to construct a scarecrow in order to garner some much needed rest. Grandpa's wisdom comes from experience and is expressed with love.