I don't have anythign to add except for a story that he once told that really stuck with me.
“My father used to play with my brother and me in the yard. Mother would come out and say, “You’re tearing up the grass”; “We’re not raising grass,” Dad would reply. “We’re raising boys” – Harmon Killebrew
I keep that sentiment close to my heart, and I always think of "Killer" when I remember it.