You're thinking about something, my dear, and that makes you forget to talk. I can't tell you just now what the moral of that is, but I shall remember it in a bit." "Perhaps it hasn't one," Alice ventured to remark. "Tut, tut, child!" said the Duchess. "Everything's got a moral, if only you can find it.
Lewis CarrollNo discussion between two persons can be of any use, until each knows clearly what it is that the other asserts.
Lewis Carroll"She can't do sums a bit!" the Queens said together, with great emphasis. "Can you do sums?" Alice said, turning suddenly on the White Queen, for she didn't like being found fault with so much. The Queen gasped and shut her eyes. "I can do Addition, if you give me time-but I can do Subtraction, under any circumstances!"
Lewis Carroll