Therefore, it was necessary for those who are most intelligent and most fitted to become the noble parts of this body and to command others, to be naturally civil,.e., to be led by a secret inclination to show others, through their manners, their courteous and honorable speech, that they think themselves unworthy of consideration, that they believe those to whom they speak are deserving of all sorts of honors, and that they have great esteem and veneration for them.