'And, in your own case, remember this plain distinction, a mistake in which has ruined thousands,—that your conscience is not a law;—No, God and reason made the law, and have placed conscience within you to determine;—not, like an Asiatic Cadi, according to the ebbs and flows of his own passions,—but like a British judge in this land of liberty and good sense, who makes no new law, but faithfully declares that law which he knows already written.'