Be able to forget.It is more a matter of luck than skill.The things we remember best are those better forgotten.Memory is not only unruly,leaving us in the lurch when most needed,but stupid as well,putting its nose into places where it is not wanted.In painful things it is active,but neglectful in recalling the pleasurable.Very often the only remedy for the ill is to forget it,and all we forget is the remedy.The happy are an exception who enjoy innocently their simple happiness.