Lactantius

“ That, therefore, which they perceived to be justly required by the demands of nature, but which they were themselves unable to perform, and saw that the philosophers could not effect, is accomplished only by divine instruction; for that only is wisdom. Doubtless they were able to persuade any one who do not even persuade themselves of anything; or they will crush the desires, moderate the anger, and restrain the lusts of any one, when they themselves both yield to vices, and acknowledge that they are overpowered by nature. ”

“ So great is the power of divine wisdom, that, when infused into the breast of man, by one impulse it once for all expels folly, which is the mother of faults, for the effecting of which there is no need of payment, or books, or nightly studies. These results are accomplished gratuitously, easily, and quickly, if only the ears are open and the breast thirsts for wisdom. Let no one fear: we do not sell water, nor offer the sun for a reward. The fountain of God, most abundant and most full, is open to all ”

“ For though they spend their lives in the study of philosophy, they are neither able to improve any other person nor themselves (if nature has presented any obstacle) . Therefore their wisdom, doing its utmost, does not eradicate, but hide vices. But a few precepts of God so entirely change the whole man, and having put off the old man, render him new, that you would not recognise him as the same. ”