Humour is the making others act or talk absurdly and unconsciously; wit is the pointing out and ridiculing that absurdity consciously, and with more or less ill-nature.
William HazlittWhen I take up a book I have read before, I know what to expect; the satisfaction is not lessened by being anticipated. I shake hands with, and look our old tried and valued friend in the face,--compare notes and chat the hour away.
William Hazlitt