The three great essentials to achieve anything worthwhile are, first, hard work; second, stick-to-itiveness; third, common sense.

Many of life's failures are people who did not realize how close they were to success when they gave up.

Every wrong attempt discarded is another step forward

Nearly every man who develops an idea works at it up to the point where it looks impossible, and then gets discouraged. that's not the place to become discouraged.

I never failed once. It just happened to be a 2000-step process.

Our greatest weakness lies in giving up.