But it is not true that knowledge is vile through imperfection. By distinction of the consequences, increase of desire is not in knowledge the cause of vileness. That it is perfect is evident, for the Philosopher, in the sixth book of the Ethics, says that science or knowledge is the perfect reason of certain things. To this question one has to reply briefly; but in the first place it is to be seen whether in the acquisition of Knowledge the desire for it is enlarged in the way suggested by the question, and whether the argument be rational. Wherefore I say that not only in the acquisition of knowledge and riches, but in each and every acquisition, human desire expands, although in different ways; and the reason is this: that the supreme desire of each thing bestowed by Nature in the first place is to return to its first source. And since God is the First Cause of our Souls, and the Maker of them after His Own Image, as it is written, "Let us make Man in Our Image, after Our likeness," the Soul especially desires to return to that First Cause. As a pilgrim, who goes along a path where he never journeyed before, may believe every house that he sees in the distance to be his inn, and, not finding it to be so, may direct his belief to the next, and so travel on from house to house until he reach the inn, even so our Soul, as soon as it enters the untrodden path of this life, directs its eyes to its supreme good, the sum of its day's travel to good; and therefore whatever thing it sees which seems to have in itself some goodness, it thinks to be the supreme good. And because its knowledge at first is imperfect, owing to want of experience and want of instruction, good things that are but little appear great to it; and therefore in the first place it begins to desire those. So we see little children desire above all things an apple; and then, growing older, they desire a little bird; and then, being older, desire a beautiful garment; and then a horse, and then a wife, and then moderate wealth, and then greater wealth, and then still more. And this happens because in none of these things that is found for which search is made, and as we live on we seek further. Wherefore it is possible to see that one desirable thing stands under the other in the eyes of our Soul in a way almost pyramidal, for the least first covers the whole, and is as it were the point of the desirable good, which is God, at the basis of all; so that the farther it proceeds from the point towards the basis, so much the greater do the desirable good things appear; and this is the reason why, by acquisition, human desires become broader the one after the other.
But, thus this pathway is lost through error, even as in the roads of the earth; for as from one city to another there is of necessity an excellent direct road, and often another which branches from that, the branch road goes into another part, and of many others some do not go all the way, and some go farther round; so in Human Life there are different roads, of which one is the truest, and another the most misleading, and some are less right, and some less wrong. And as we see that the straightest road to the city satisfies desire and gives rest after toil, and that which goes in the opposite direction never satisfies and never can give rest, so it happens in our Life. The man who follows the right path attains his end, and gains his rest. The man who follows the wrong path never attains it, but with much fatigue of mind and greedy eyes looks always before him.
Wherefore, although this argument does not entirely reply to the question asked above, at least it opens the way to the reply, which causes us to see that each desire of ours does not proceed in its expansion in one way alone. But because this chapter is somewhat prolonged, we will reply in a new chapter to the question, wherein may be ended the whole disputation which it is our intention to make against riches.
CHAPTER XIII.
In reply to the question, I say that it is not possible to affirm properly that the desire for knowledge does increase, although, as has been said, it does expand in a certain way. For that which properly increases is always one; the desire for knowledge is not always one, but is many; and one desire fulfilled, another comes; so that, properly speaking, its expansion is not its increase, but it is advance of a succession of smaller things into great things. For if I desire to know the principles of natural things, as soon as I know these, that desire is satisfied and there is an end of it. If I then desire to know the why and the wherefore of each one of these principles, this is a new desire altogether. Nor by the advent of that new desire am I deprived of the perfection to which the other might lead me. Such an expansion as that is not the cause of imperfection, but of new perfection. That expansion of riches, however, is properly increased which is always one, so that no succession is seen therein, and therefore no end and no perfection.
And if the adversary would say, that if the desire to know the first principles of natural things is one thing, and the desire to know what they are is another, so is the desire for a hundred marks one thing, and the desire for a thousand marks is another, I reply that it is not true; for the hundred is part of the thousand and is related to it, as part of a line to the whole of the line along which one proceeds by one impulse alone; and there is no succession there, nor completion of motion in any part. But to know what the principles of natural things are is not the same as to know what each one of them is; the one is not part of the other, and they are related to each other as diverging lines along which one does not proceed by one impulse, but the completed movement of the one succeeds the completed movement of the other. And thus it appears that, because of the desire for knowledge, knowledge is not to be called imperfect in the same way as riches are to be called imperfect, on account of the desire for them, as the question put it; for in the desire for knowledge the desires terminate successively with the attainment of their aims; and in the desire for riches, NO; so that the question is solved.
Again, the adversary may calumniate, saying that, although many desires are fulfilled in the acquisition of knowledge, the last is never attained, which is the imperfection of that one desire, which does not gain its end; and that will be both one and imperfect.
Again one here replies that it is not a truth which is brought forward in opposition, that is, that the last desire is never attained; for our natural desires, as is proved in the third treatise of this book, are all tending to a certain end; and the desire for knowledge is natural, so that this desire compasses a certain end, although but few, since they walk in the wrong path, accomplish the day's journey. And he who understands the Commentator in the third chapter, On the Soul, learns this of him; and therefore Aristotle says, in the tenth chapter of the Ethics, against Simonides the Poet, that man ought to draw near to Divine things as much as is possible; wherein he shows that our power tends towards a certain end. And in the first book of the Ethics he says that the disciplined Mind demands certainty in its knowledge of things in proportion as their nature received certainty, in which he proves that not only on the side of the man desiring knowledge, but on the side of the desired object of knowledge, attention ought to be given; and therefore St. Paul says: "Not much knowledge, but right knowledge in moderation." So that in whatever way the desire for knowledge is considered, either generally or particularly, it comes to perfection.
And since knowledge is a noble perfection, and through the desire for it its perfection is not lost, as is the case with the accursed riches, we must note briefly how injurious they are when possessed, and this is the third notice of their imperfection. It is possible to see that the possession of them is injurious for two reasons: one, that it is the cause of evil; the other, that it is the privation of good. It is the cause of evil, which makes the timid possessor wakeful, watchful, and suspicious or hateful.
How great is the fear of that man who knows he carries wealth about him, when walking abroad, when dwelling at home, when not only wakeful or watching, but when sleeping, not only the fear that he may lose his property, but fear for his life because he possesses these riches! Well do the miserable merchants know, who travel through the World, that the leaves which the wind stirs on the trees cause them to tremble when they are bearing their wealth with them; and when they are without it, full of confidence they go singing and talking, and thus make their journey shorter! Therefore the Wise Man says: "If the traveller enters on his road empty, he can sing in the presence of thieves." And this Lucan desires to express in the fifth book, when he praises the safety of poverty: "O, the safe and secure liberty of the poor Life! O, narrow dwelling-places and thrift! O, not again deem riches to be of the Gods! In what temples and within what palace walls could this be, that is to have no fear, in some tumult or other, of striking the hand of Cæsar?"