|Alice But I don't want to go among mad people.|
Cheshire Oh, you can't help that. We're all mad here. I'm mad. You're mad.
Alice How do you know I'm mad?
Cheshire You must be. Or you wouldn't have come here.
Alice And how do you know that you're mad?
Cheshire To begin with, a dog's not mad. You grant that?
Alice I suppose so,
Cheshire Well, then, you see, a dog growls when it's angry, and wags its tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad.