The wise person, as he grows older, must turn to the perfecting of his creative and appreciative abilities, which mellow and improve with age. He must take inventory of his personality, realizing that whatever it is now, so it will tend to be in later years, multiplied many times.
[If you want to grow older happily] Ask yourself these nine determinative questions:
Am I self-centered, or do I take other people’s needs and desires into account as well as my own?