The only permanent rule in Calvinball is that you can never play it the same way twice! (Calvin)

I'm willing to take the blame if the strip goes down the drain, and I want the credit if it succeeds. So long as it has my name on it, I want it to be mine.

Hobbes: Jump! Jump! Jump! I win! Calvin: You win? Aaugghh! You won last time! I hate it when you win! Aarrggh! Mff! Gnnk! I hate this game! I hate the whole world! Aghhh! What a stupid game! You must have cheated! You must have used some sneaky, underhanded mindmeld to make me lose! I hate you! I didn't want to play this idiotic game in the first place! I knew you'd cheat! I knew you'd win! Oh! Oh! Aarg! [Calvin runs in circles around Hobbes screaming "Aaaaaaaaaaaa", then falls over.] Hobbes: Look, it's just a game. Calvin: I know! You should see me when I lose in real life!

No sport is less organized than Calvinball.

My guess is that the editor [Cincinnati Post] wanted his own Jeff MacNelly (a Pulitzer winner at 24), and I didn't live up to his expectations. My Cincinnati days were pretty Kafkaesque.

Mom’s not feeling well. So I’m making her a get well card.” “That’s thoughtful of you.” "See, on the front it says, ‘Get Well Soon’ … and on the inside it says,’Because my bed isn’t made, my clothes need to be put away and I’m hungry. Love Calvin.’ Want to sign it?” “Sure, I’m hungry too

You know, there are times when it's a source of personal pride to not be human.