Chapter 2.--What a Thing Is, and What A Sign.
2. All instruction is either about things or about signs; but things are learnt by means of signs. I now use the word "thing" in a strict sense, to signify that which is never employed as a sign of anything else: for example, wood, stone, cattle, and other things of that kind. Not, however, the wood which we read Moses cast into the bitter waters to make them sweet, [1719] nor the stone which Jacob used as a pillow, [1720] nor the ram which Abraham offered up instead of his son; [1721] for these, though they are things, are also signs of other things. There are signs of another kind, those which are never employed except as signs: for example, words. No one uses words except as signs of something else; and hence may be understood what I call signs: those things, to wit, which are used to indicate something else. Accordingly, every sign is also a thing; for what is not a thing is nothing at all. Every thing, however, is not also a sign. And so, in regard to this distinction between things and signs, I shall, when I speak of things, speak in such a way that even if some of them may be used as signs also, that will not interfere with the division of the subject according to which I am to discuss things first and signs afterwards. But we must carefully remember that what we have now to consider about things is what they are in themselves, not what other things they are signs of.
[1719] Ex. xv. 25.
[1720] Gen. xxviii. 11.
[1721] Gen. xxii. 13.
Chapter 3.--Some Things are for Use, Some for Enjoyment.
3. There are some things, then, which are to be enjoyed, others which are to be used, others still which enjoy and use. Those things which are objects of enjoyment make us happy. Those things which are objects of use assist, and (so to speak) support us in our efforts after happiness, so that we can attain the things that make us happy and rest in them. We ourselves, again, who enjoy and use these things, being placed among both kinds of objects, if we set ourselves to enjoy those which we ought to use, are hindered in our course, and sometimes even led away from it; so that, getting entangled in the love of lower gratifications, we lag behind in, or even altogether turn back from, the pursuit of the real and proper objects of enjoyment.
Chapter 4.--Difference of Use and Enjoyment.
4. For to enjoy a thing is to rest with satisfaction in it for its own sake. To use, on the other hand, is to employ whatever means are at one's disposal to obtain what one desires, if it is a proper object of desire; for an unlawful use ought rather to be called an abuse. Suppose, then, we were wanderers in a strange country, and could not live happily away from our fatherland, and that we felt wretched in our wandering, and wishing to put an end to our misery, determined to return home. We find, however, that we must make use of some mode of conveyance, either by land or water, in order to reach that fatherland where our enjoyment is to commence. But the beauty of the country through which we pass, and the very pleasure of the motion, charm our hearts, and turning these things which we ought to use into objects of enjoyment, we become unwilling to hasten the end of our journey; and becoming engrossed in a factitious delight, our thoughts are diverted from that home whose delights would make us truly happy. Such is a picture of our condition in this life of mortality. We have wandered far from God; and if we wish to return to our Father's home, this world must be used, not enjoyed, that so the invisible things of God may be clearly seen, being understood by the things that are made, [1722] --that is, that by means of what is material and temporary we may lay hold upon that which is spiritual and eternal.
[1722] Rom. i. 20.