[109] Question 109. Why is it not lawful for the high priest of Jupiter, which they call Flamen Dialis, to touch meal or leaven?
Solution. Is it because meal is imperfect and crude nourishment? For the wheat neither hath continued what it was, neither is it made into bread as it must be; but it hath lost the faculty of seed, and hath not attained to usefulness for food. Wherefore the poet hath named meal, by a metaphor, mill-murdered (μυλήφατον), as if the corn were spoiled and destroyed by grinding. Leaven, as it is made by corruption, corrupts the mass that it is mingled with, for it is made thereby looser and weaker; and fermentation is a kind of corruption, which, if it be overmuch, makes the bread sour and spoils it.