Surprisingly few men are lacking in capacity, but they fail because... they are too indolent to apply themselves with the seriousness and the attention that is necessary to solve important problems.
Calvin CoolidgeKnowledge comes, but wisdom lingers. It may not be difficult to store up in the mind a vast quantity of facts within a comparatively short time, but the ability to form judgments requires the severe discipline of hard work and the tempering heat of experience and maturity.
Calvin CoolidgeI sometimes wish that people would put a little more emphasis upon the observance of the law than they do upon its enforcement.
Calvin CoolidgeNothing in this 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.
Calvin Coolidge