Be unselfish. That is the first and final commandment for those who would be useful and happy in their usefulness. If you think of yourself only, you cannot develop because you are choking the source of development, which is spiritual expansion through thought for others.
“I don't see myself as beautiful, because I can see a lot of flaws. People have really odd opinions. They tell me I'm skinny, as if that's supposed to make me happy.”
“I could do John Wayne, Jack Benny, Jack Kennedy, Lyndon Johnson and entertain my friends. But I never seriously considered it as a career choice.”