Tertullian

“ A philosopher, in fact, is heard so long as he is seen. My very sight puts vices to the blush. Who suffers not, when he sees his own rival? Who can bear to gaze ocularly at him at whom mentally he cannot? ”

“ Grand is the benefit conferred by the Mantle, at the thought whereof moral improbity absolutely blushes. Let philosophy now see to the question of her own profitableness; for she is not the only associate whom I boast. Other scientific arts of public utility I boast. From my store are clothed the first teacher of the forms of letters, the first explainer of their sounds, the first trainer in the rudiments of arithmetic, the grammarian, the rhetorician, the sophist, the medical man, the poet, the musical timebeater, the astrologer, and the birdgazer. ”