but whatever is done without any guide, in a state of anarchy, in such case the body ruins us as anarchy ruins a city. Again, we must consider that those motions of the outward senses which proceed in obedience to the mind, and which of necessity are the better, do take place according to the dispensation of God; but these which are obstinate and disobedient, we must impute to ourselves, when we are carried away irrationally by the impetuosity of the outward senses.
 
 And he has commanded us to take a portion not only from the things which have just been mentioned, but also from the entire mass in combination. And the command is couched in the following words: "And it shall be, when ye eat of the fruit of the land, that ye shall take a part to offer up has a heave-offering unto the Lord: ye shall offer up a cake of the first of your dough for a heave-offering as ye do the heave-offering of the threshing-floor, so shall ye offer it." Numbers xv. 19. Now speaking properly, if we must avow the exact truth, it is we ourselves who are this dough; since many essences are kneaded and combined together that we may be made perfect: for the great Creator having mingled and kneaded together the cold and hot, dry and moist, opposite properties, has made out of them all one distinct combination, ourselves, from which the expression dough is applied to us. Now, of this combination in which body and soul, two most important divisions, are united, the first fruits are to be consecrated. But the first fruits are the holy motions of each in accordance with virtue; on which account they have been compared to a threshing-floor. As, therefore, on a threshing-floor there is wheat and barley, and as many more of such things as are capable of being separated by themselves, and husks and chaff, and whatever other refuse is dissipated and scattered in different directions, so too, with us, there are some things which are excellent and useful, and which afford real nourishment, by means of which a good life is brought to perfection; all which things we should attribute to God. But there are other things which are not divine, which we must leave like refuse to the race of mankind; but from these some portions must be taken away, and there are some entire virtues, free from all wickedness, which it would be impious to mutilate by dividing them, and which resemble those indivisible sacrifices, the whole burnt-offerings, of which Isaac is a manifest pattern, whom his father was commanded to offer up like a victim, sharing in no destructive passion.