“The truth is, as all will declare who are subject to a frequently recurring pain, a familiar pain becomes more and more dreaded, instead of becoming lightly esteemed in proportion to its familiarity. The general sense of alarm which it probably occasioned when new, may have given way and disappeared before a knowledge of consequences, and a regular method of management or endurance; but the pain itself becomes more odious, more oppressive, more feared, in proportion to the accumulation of experience of weary hours, in proportion to the aggregate of painful associations which every visitation revives.”