Truth-Seeking is a Virtue

Then the other so-called virtues of the soul do seem akin to those of the body.  For it is true that where they do not pre-exist, they are afterward created by habit and practice.  But the excellence of thought, it seems, is certainly of a more divine quality, a thing that never loses its potency, but, according to the direction of its conversion, becomes useful and beneficent, or, again, useless and harmful.