When anything, from the meanest thing upwards, is attractive or serviceable or an object of affection, remember always to say to yourself, ‘What is its nature?’ If you are fond of a jug, say you are fond of a jug; then you will not be disturbed if it be broken. If you kiss your child or your wife, say to yourself that you are kissing a human being, for then if death strikes it you will not be disturbed.