Nothing 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[The reason a man has] so much trouble with the Senate is that there isn't a man in the Senate who doesn't think he is better suited to be President than the President, and thinks he might have been President except for luck.
Calvin Coolidge