Most curiously, the very scientist who, in the service of the sinful king, was the brain behind the horror of the labyrinth, quite as readily can serve the purposes of freedom. But the hero-heart must be at hand.... He is the hero of the way of thought—singlehearted, courageous, and full of faith that the truth, as he finds it, shall make us free.

Chapter 1 - The Hero with a Thousand Faces (1949)