Nothing in the world can take the place of persistence. Talent will not;
nothing is more common than unsuccessful men with talent. Genius will not;
unrewarded genius is almost a proverb. Education will; not the world is full
of educated derelicts. Persistence and determination alone are omnipotent. The
slogan, 'Press on,' has solved and always will solve the problems of the human
race.
-Calvin Coolidge