If man must preach, let him preach something that is edifying, and from texts that are known to be true. [...] Every part of science, whether connected with the geometry of the universe, with the systems of animal and vegetable life, or with the properties of inanimate matter, is a text as well for devotion as for philosophy; for gratitude, as for human improvement. It will perhaps be said, that if such a revolution in the system of religion takes place, every preacher ought to be a philosopher. Most certainly; and every house of devotion a school of science.