Man alone can choose to disobey moral law, unlike nature's fixed order.
The sea cannot roll up the mountain, however furious its rags may become: it must lie in its own bed. Neither suns, stars, nor comets have power in themselves to sweep an inch out of their orbits. The mightiest animal of sea or land has no power to act contrary to the strong law of instinct. But man has the power to overstep the moral boundary of his being, to fly from his appointed orbit: he can deviate from truth, justice, benevolence, and piety. The great sun cannot say No to its Maker: a child may and does. Dr. Thomas.