"Let them not be discouraged if the results be not so flattering to their self-love as they anticipated. So far as their researches disclose what is good and proper in their religion, they must strengthen the belief in its divine origin; and so far as they disclose what is bad and improper, they merely indicate the corruptions introduced by human tradition. Such corruptions can be neither concealed nor defended with safety; but when discovered, they must be rejected as mere human inventions and superstitious errors. All religions have passed through human minds and human hands. .. ."