In Man of La Mancha, Don Quixote's Determinator frame of mind is expressed in "The Impossible Dream":
This is my quest, to follow that star
No matter how hopeless, no matter how far
To fight for the right, without question or pause
To be willing to march into Hell, for a Heavenly cause...
And the world will be better for this:
That one man, scorned and covered with scars,
Still strove, with his last ounce of courage,
To reach the unreachable star.