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 CarrollMust a name mean something?" Alice asked doubtfully. Of course it must," Humpty Dumpty said with a short laugh; "my name means the shape I am - and a good handsome shape it is, too. With a name like yours, you might be any shape, almost.
Lewis CarrollThe Cheshire Cat only grinned when it saw Alice. It looked good-natured, she thought: still it had very long claws and a great many teeth, so she felt it ought to be treated with respect.
Lewis CarrollThen you should say what you mean," the March Hare went on. "I do," Alice hastily replied; "at least--at least I mean what I say--that's the same thing, you know." "Not the same thing a bit!" said the Hatter. "You might just as well say that "I see what I eat" is the same thing as "I eat what I see"!
Lewis Carroll