[86] [cap.26] After those that are cut up, it was very natural to make an offering of such as are ground; that is to say, it is natural after the division to dwell among and pass one’s leisure among what had been thus discovered, for continued practise produces firm and stable knowledge, just as continued indifference produces ignorance. Therefore numbers of men from fear of the labour of practise, have lost the strength with which they were endowed by nature, whom those men have not imitated who nourished their souls on prophecy, which is signified under the name of manna, "for they ground it in mills or beat it in a mortar, and baked it in pans, and made cakes of it." [81] every one of them knowing well how to knead and soften the heavenly language of virtue for the sake of making the intellect firmer.