And how many hours a day did you do lessons?' said Alice, in a hurry to change the subject. Ten hours the first day,' said the Mock Turtle: 'nine the next, and so on.' What a curious plan!' exclaimed Alice. That's the reason they're called lessons,' the Gryphon remarked: 'because they lessen from day to day.
Lewis CarrollNo discussion between two persons can be of any use, until each knows clearly what it is that the other asserts.
Lewis Carroll