A wise sentence با آن كس كه تو را سخن آموخت به درشتي سخن مگو، و با كسي كه راه نيكو سخن گفتن به تو آموخت، لاف بلاغت مزن. don't speak rudely with whom taught you the speech, and don't bluff on rhetoric to whom that taught you the way to speak nice.