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

Show me a thoroughly satisfied man and I will show you a failure.

The reason a lot of people do not recognize opportunity is because it usually goes around wearing overalls looking like hard work.

The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.

I was always afraid of things that worked the first time. Long experience proved that there were great drawbacks found generally before they could be got commercial; but here was something there was no doubt of.