To learn is to receive knowledge; but he who seeks to learn this Truth which is both behind and beyond all other truths must come with his mind, his heart, his body, and his will. With his mind because his thought must be pushed to its deepest measure. With his heart because his love is demanded more than he now knows. With his body because it is to be the temple of the holy spirit. And with his will because he may not stop this enterprise until he is through.
Source: The Notebooks of Paul Brunton