Men are as forgetful and heedless in their waking moments of what is going on around them as they are during their sleep. Fools, although they hear, are like deaf; to them the adage applies that whenever they are present they are absent. One should not act or speak as if he were asleep. The waking have one world in common; sleepers have each a private world of his own. Whatever we see when awake is death, when asleep, dreams.