'In that direction,' the cat said, waving its right paw around, 'lives a Hatter; and in that direction,' waving the other paw, 'lives a March Hare. Visit either you like: they're both mad.'
'But I don't want to go among mad people,' Alice remarked.
'Oh, you can't help that,' said the cat: 'we're all mad here. I'm mad. You're mad.'
'How do you know I'm mad?' said Alice.
'You must be,' said the cat, 'or you wouldn't have come here.'