"All moral and spiritual things, all truths of the soul, differ in the following way from the formulas of science and doctrines of philosophy; moral realities are more largely understood in physical form and concrete embodiment than in general statement; and to know the infinite depth there is and the boundless reach of application, in goodness, love and faith, it is better to look on one saintly life or even a single act of noble living obedience, than into whole digests and bibles of definitions however comprehensive and precepts however divine."  J. Martineau.