Philo Judaeus De Sacrificiis Abelis Et Caini 80

And let the ripeness of the new soul be toasted. That is to say, as gold is tried in the fire, let this also be tested by powerful reason. And the being consolidated is a sign of having been tried, and tested, and approved. For as the fruit of flourishing stalks of corn is toasted, that it may no longer be damp, and as this cannot in the nature of things take place without fire, so also is it necessary that the young and fresh ripeness, advancing by means of powerful and unalterable reason to the perfection of virtue, must be made solid and ¹ stable. But it is the natural characteristic of reason not only to ripen speculations in the soul, preventing them from dissolving, but also vigorously to put an end to the impetuosity of irrational passion.