GRAMP: Do you think I'm doing a good job raising Sheldon? ARTHUR: What?
GRAMP: I... I just don't know how I'm DOING at this. I need my wife. I need his parents.
GRAMP: They were the ones with all the parenting know-how. ...I just end up figuring it out as I go.
GRAMP: I'm 65, for goodness sakes! I'm supposed to be glued to my easy chair, complaining about the news! ARTHUR (patting Gramp on Shoulder): ...If it's any consolation, that's how I'd describe your parenting style.