want of strength, or from fear and hesitation, the impetus gives in and abandons what is good, there reason is by to stir it up and rekindle it; and where on the other hand it goes ahead too fast and in disorder, there it represses and checks its zeal. And thus setting bounds to the emotional motions, it engenders in the unreasoning part of the soul moral virtues, which are the mean between excess and deficiency. Not that we can say that all virtue exists in the mean, but knowledge and prudence being in no need of the unreasoning element, and being situated in the pure and unemotional part of the soul, is a complete perfection and power of reason, whereby we get the most divine and happy fruit of understanding. But that virtue which is necessary because of the body, and needs the help of the passions as an instrument towards the practical, not destroying or doing away with but ordering and regulating the unreasoning part of the soul, is perfection as regards its power and quality, but in quantity it is a mean correcting both excess and deficiency. Sec. VI. But since the word mean has a variety of meanings--for there is one kind of mean compounded of two simple extremes, as grey is the mean between white and black; and there is another kind of mean, where that which contains and is contained is the mean between the containing and contained, as eight is the mean between twelve and four; and there is a third kind of mean which has part in neither extreme, as the indifferent is the mean between good and bad,--virtue cannot be a mean in any of these ways. For neither is it a mixture of vices, nor containing that which is defective is it contained by that which is excessive, nor is it again altogether free from, emotional storms of passion, wherein are excess and deficiency. But it is, and is commonly so called, a mean like that in music and harmony. For as in music there is a middle note between the highest and lowest in the scale, which being perfectly in tune avoids the sharpness of the one and the flatness of the other; so virtue, being a motion and power in the unreasoning part of the soul, takes away the remissness and strain, and generally speaking the excess and defect of the appetite, by reducing each of the passions to a state of mean and rectitude. For example, they tell us that bravery is the mean between cowardice and foolhardiness, whereof the former is a defect, the latter an excess of anger: and that liberality is the mean between stinginess and prodigality: and that meekness is the mean between insensibility and savageness: and so of temperance and justice, that the latter, being concerned with contracts, is to assign neither too much nor too little to litigants, and that the former ever reduces the passions to the proper mean between apathy (or insensibility) and gross intemperance. This last illustration serves excellently to show us the radical difference between the unreasoning and reasoning parts of