“But I donâ€™t want to go among mad people," Alice remarked."Oh, you canâ€™t help that," said the Cat: "weâ€™re all mad here. Iâ€™m mad. Youâ€™re mad.""How do you know Iâ€™m mad?" said Alice."You must be," said the Cat, "or you wouldnâ€™t have come here.”
Lewis Carroll,
alice-s-adventures-in-wonderland