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of glass, have used the caution necessary to preserve such brittle bodies. Hence it comes to pass that a man, who is very sober, and of a right understanding in all other things, may in one particular be as frantic as any in Bedlam; if either by any sudden very strong impression, or long fixing his fancy upon one sort of thoughts, incoherent ideas have been cemented together so powerfully, as to remain united. But there are de grees of madness, as of folly: the disorderly jumbling ideas together, is in some more, some less. In short, herein seems to lie the difference between idiots and madmen, that madmen put wrong ideas together, and so make wrong propositions, but argue and reason right from them; but idiots make very few or no propositions, and reason scarce at all.

Method.

§. 14. These, I think, are the first faculties and operations of the mind, which it makes use of in understanding: and though they are exercised about all its ideas in general, yet the instances I have hitherto given have been chiefly in simple ideas; and I have subjoined the explication of these faculties of the mind to that of simple ideas, before I come to what I have to say concerning complex ones, for these following reasons.

First, Because several of these faculties being exercised at first principally about simple ideas, we might, by following nature in its ordinary method, trace and discover them in their rise, progress, and gradual im provements.

Secondly, Because observing the faculties of the mind how they operate about simple ideas, which are usually, in most men's minds, much more clear, precise, and distinct than complex ones; we may the better examine and learn how the mind abstracts, denominates, compares, and exercises its other operations about those which are complex, wherein we are much more liable to mistake.

Thirdly, Because these very operations of the mind about ideas, received from sensations, are themselves, when reflected on, another set of ideas, derived from that other source of our knowledge which I call re

flection, and therefore fit to be considered in this place after the simple ideas of sensation. Of compounding, comparing, abstracting, &c., I have but just spoken, having occasion to treat of them more at large in other places.

§. 15. And thus I have given a short, and, These are the beginI think, true history of the first beginnings nings of hu- of human knowledge, whence the mind has its man know first objects, and by what steps it makes its ledge. progress to the laying in and storing up those ideas, out of which is to be framed all the knowledge it is capable of; wherein I must appeal to experience and observation, whether I am in the right: the best way to come to truth, being to examine things as really they are, and not to conclude they are, as we fancy of ourselves, or have been taught by others to imagine.

Appeal to

§. 16. To deal truly, this is the only way experience. that I can discover, whereby the ideas of things are brought into the understanding: if other men have either innate ideas, or infused principles, they have reason to enjoy them; and if they are sure of it, it is impossible for others to deny them the privilege that they have above their neighbours. I can speak but of what I find in myself, and is agreeable to those notions; which, if we will examine the whole course of men in their several ages, countries, and educations, seem to depend on those foundations which I have laid, and to correspond with this method in all the parts and degrees thereof.

Dark room. §. 17. I pretend not to teach, but to inquire, and therefore cannot but confess here again, that external and internal sensation are the only passages that I can find of knowledge to the understanding. These alone, as far as I can discover, are the windows by which light is let into this dark room: for methinks the understanding is not much unlike a closet wholly shut from light, with only some little opening left, to let in external visible resemblances, or ideas of things without: would the pictures coming into such a dark room but stay there, and lie so orderly

as to be found upon occasion, it would very much resemble the understanding of a man, in reference to all objects of sight, and the ideas of them.

These are my guesses concerning the means whereby the understanding comes to have and retain simple ideas, and the modes of them, with some other operations about them. I proceed now to examine some of these simple ideas, and their modes, a little more parti cularly.

CHAP. XII.

Of Complex Ideas.

3.1. WE have hitherto considered those Made by the ideas, in the reception whereof the mind mind out of is only passive, which are those simple simple ones. ones received from sensation and reflection before mentioned, whereof the mind cannot make one to itself, nor have any idea which does not wholly con sist of them. But as the mind is But as the mind is wholly passive in the reception of all its simple ideas, so it exerts several acts of its own, whereby out of its simple ideas as the materials and foundations of the rest, the other are framed. The acts of the mind, wherein it exerts its power over its simple ideas, are chiefly these three: 1. Combining several simple ideas into one compound one, and thus all complex ideas are made. 2. The se cond is bringing two ideas, whether simple or com. plex, together, and setting them by one another, so as to take a view of them at once, without uniting them into one; by which way it gets all its ideas of rela tions. 3. The third is separating them from all other ideas that accompany them in their real existence; this is called abstraction: and thus all its general ideas are made. This shows man's power, and its ways of operation, to be much what the same in the material

and intellectual world. ing such as he has no power over, either to make or destroy, all that man can do is either to unite them together, or to set them by one another, or wholly separate them. I shall here begin with the first of these in the consideration of complex ideas, and come to the other two in their due places. As simple ideas are observed to exist in several combinations united together, so the mind has a power to consider several of them united together as one idea; and that not only as they are united in external objects, but as itself has joined them. Ideas thus made up of several simple ones put together, I call complex; such as are beauty, gratitude, a man, an army, the universe; which though complicated of various simple ideas, or complex ideas made of simple ones, yet are, when the mind pleases, considered each by itself as one entire thing, and signified by one name.

For the materials in both be

up

Made vo

§. 2. In this faculty of repeating and luntarily. joining together its ideas, the mind has great power in varying and multiplying the objects of its thoughts, infinitely beyond what sensation or reflection furnishes it with; but all this still confined to those simple ideas which it received from those two sources, and which are the ultimate materials of all its compositions: for simple ideas are all from things themselves, and of these the mind can have no more, nor other than what are suggested to it. It can have no other ideas of sensible qualities than what come from without by the senses; nor any ideas of other kind of operations of a thinking substance than what it finds in itself; but when it has once got these simple ideas, it is not confined barely to observation, and what offers itself from without: it can, by its own power, put together those ideas it has, and make new complex ones, which it never received so united.

Are either

com

§. 3. Complex ideas, however modes, sub- pounded and decompounded, though their number be infinite, and the variety endrelations. less, wherewith they fill and entertain the

stances or

thoughts of men; yet, I think, they may be all reduced under these three heads: 1. Modes. 2. Substances. 3. Relations.

§. 4. First, Modes I call such complex Modes. ideas, which, however compounded, contain not in them the supposition of subsisting by themselves, but are considered as dependences on or affecttions of substances; such as are ideas signified by the words triangle, gratitude, murder, &c. And if in this I use the word mode in somewhat a different sense from its ordinary signification, I beg pardon; it being unavoidable in discourses, differing from the ordinary received notions, either to make new words, or to use old words in somewhat a new signification: the latter whereof, in our present case, is perhaps the more tolerable of the two.

§. 5. Of these modes, there are two Simple and

sorts which deserve distinct consideration. mixed First, there are some which are only va- modes. riations, or different combinations of the same simple idea, without the mixture of any other; as a dozen or score; which are nothing but the ideas of so many dis tinct units added together: and these I call simple modes, as being contained within the bounds of one simple idea.

Secondly, there are others compounded of simple ideas of several kinds, put together to make one complex one; v. g. beauty, consisting of a certain composition of colour and figure, causing delight in the beholder; theft, which being the concealed change of the possession of any thing, without the consent of the proprietor, contains, as is visible, a combination of several ideas of several kinds: and these I call mixed modes.

Substances single or

§. 6. Secondly, the ideas of substances are such combinations of simple ideas, as are taken to represent distinct particular collective. things subsisting by themselves; in which

the supposed or confused idea of substance, such as it is, is always the first and chief. Thus if to substance be joined the simple idea of a certain dull whitish co

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