[53] But the proper honour to be paid to the mind is first to be honoured on account of what is useful, and not on account of what is pleasant; but all things proceeding from virtue are useful. And the honour proper to be paid to the outward sense is when we do not allow ourselves to be carried away by its impetuosity towards the external objects of the outward senses, but compel it to be curved by the mind, which knows how to govern and guide the irrational powers in us.