Who decides whether you shall be happy or unhappy? You do!
Good intentions are no substitute for obedience.
Always remember that problems contain values that have improvement potential.
Getting people to like you is merely the other side of liking them.
The greatest measure of a human being isn't how he handles himself when things are going well, but how he handles himself when things are going badly, when defeat comes.
Whenever a negative thought concerning your personal power comes to mind, deliberately voice a positive thought to cancel it out.