She [Alice] went on "And how do you know that you're mad?" "To begin with," said the Cat, "a dog's not mad. You grant that?" "I suppose so," said Alice. "Well, then," the Cat went on, "you see, a dog growls when it's angry, and wags it's tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad."
Lewis CarrollThe Caterpillar and Alice looked at each other for some time in silence: at last the Caterpillar took the hookah out of its mouth.
Lewis CarrollHow puzzling all these changes are! I'm never sure what I'm going to be, from one minute to another.
Lewis CarrollWhat do you suppose is the use of a child without any meaning? Even a joke should have some meaning-- and a child's more imporant than a joke, I hope. You couldn't deny that, even if you tried with both hands.
Lewis Carroll