It is a well known fact that a man learns best that which he endeavors to teach others.
Napoleon HillThe space you occupy and the authority you exercise may be measured with mathematical exactness by the service you render.
Napoleon HillThere would be no advantage to be gained by sowing a field of wheat if the harvest did not return more than was sown.
Napoleon HillIf you give up before your goal has been reached, you are a "quitter." A QUITTER NEVER WINS AND A WINNER NEVER QUITS. Lift this sentence out, write it on a piece of paper in letters an inch high, and place it where you will see it every night before you go to sleep, and every morning before you go to work
Napoleon Hill