1. The only person whose behavior we can control is our own. - William Glasser
  2. Victory is sweetest when you've known defeat. – Malcolm Forbes
  3. There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will. – Epictetus
  4. In the time of darkest defeat, victory may be nearest. – William McKinley
  5. It is better to live rich than to die rich. – Samuel Johnson
  6. We are made wise not by the recollection of our past, but by the responsibility for our future. – George Bernard Shaw
  7. The invariable mark of wisdom is to see the miraculous in the common. – Ralph Waldo Emerson
  8. The least card in the winning hand in front of you is more important than the best card in the losing hand you just laid down. – Baltasar Gracian
  9. Not all goodness triumphs always, things have their seasons. – Baltasar Gracian
  10. Wisdom, compassion, and courage are the three universally recognized moral qualities of men. – Confucius

Feel free to contribute and add on, add prefix: 11, 12, 13, 14, 15. I will add more continually with days to come.