There is no substitute for hard work. — Thomas A. Edison

Reform is not pleasant, but grievous; no person can reform themselves without suffering and hard work, how much less a nation. — Thomas Carlyle
To work hard, to live hard, to die hard, and then go to hell after all would be too damn hard. — Carl Sandburg
We are all born ignorant, but one must work hard to remain stupid. — Benjamin Franklin
Results! Why, man, I have gotten a lot of results. I know several thousand things that won't work. — Thomas A. Edison
Opportunity is missed by most people because it is dressed in overalls and looks like work. — Thomas A. Edison
The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense. — Thomas A. Edison