(I promised to post my favorite persistence poem, and I found a few other cool quotes as well)
by Calvin Coolidge
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 alone will not; the word is full of educated derelicts.
"Great works are performed not by strength but by perseverance."