my dad gave me one engraved with his favorite quote, from Calvin Coolidge. I had it hanging in my childhood bedroom, then in my college dorm room; I have it still, hanging here above my desk. It reads: 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.