Always demanding the best of oneself, living with honor, devoting one's talents and gifts to the benefits of others - these are the measures of success that endure when material things have passed away.

Whether you believe you can or not, you're right.

You must know all there is to know in your particular field and keep on the alert for new knowledge. The least difference in knowledge between you and another man may spell his success and your failure.

You can do anything if you have enthusiasm. Enthusiasm is the yeast that makes your hopes rise to the stars. Enthusiasm is the spark in your eye, the swing in your gait, the grip of your hand, the irresistible surge of your will and your energy to execute your ideas. Enthusiasts are fighters, they have fortitude, they have strong qualities. Enthusiasm is at the bottom of all progress. With it there is accomplishment. Without it there are only alibis.

To live a great life, you must believe in yourself. Let these quotes help you to create a mindset for believing in yourself... Those who believe they can do something and those who believe they can't are both right.

I regarded our progress merely as an invitation to do more - as an indication that we had reached a place where we might begin to perform a real service.

People are as happy as they choose to be.