It is not your aptitude, but your attitude, that determines your altitude.
Gratitude is the healthiest of all human emotions. The more you express gratitude for what you have, the more likely you will have even more to express gratitude for.
Failure is a detour, not a dead-end street.
Failure is an event, never a person; an attitude, not an outcome.
Attitudosis cannot survive a strong, steady dose of uplifting literature or a regular donation of your time to a good cause. Make eye contact with someone who doesn't expect it and then give her your best smile. When you are willing to improve your attitude and you take action to do so, you'll enjoy life even more.
Failure is an event not a person.