Institutio Oratoria

unless indeed we agree with those who regard morality as intuitive and as owing nothing to instruction: indeed they go so far as to acknowledge that handicrafts, not excluding even those which are most despised among them, can only be acquired by the result of teaching, whereas virtue, which of all gifts to man is that which makes him most near akin to the immortal gods, comes to him without search or effort, as a natural concomitant of birth. But can the man who does not know what abstinence is, claim to be truly abstinent?

or brave, if he has never purged his soul of the fears of pain, death and superstition? or just, it he has never, in language approaching that of philosophy, discussed the nature of virtue and justice, or of the laws that have been given to mankind by nature or established among individual peoples and nations? What a contempt it argues for such themes to regard them as being so easy of comprehension!