[An Essay Concerning Humane Understanding, Volume I. by John Locke]@TWC D-Link book
An Essay Concerning Humane Understanding, Volume I.

CHAPTER VIII
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These I call PRIMARY QUALITIES.
SECONDLY, The power that is in any body, by reason of its insensible primary qualities, to operate after a peculiar manner on any of our senses, and thereby produce in US the different ideas of several colours, sounds, smells, tastes, &c.

These are usually called SENSIBLE QUALITIES.
THIRDLY, The power that is in any body, by reason of the particular constitution of its primary qualities, to make such a change in the bulk, figure, texture, and motion of ANOTHER BODY, as to make it operate on our senses differently from what it did before.

Thus the sun has a power to make wax white, and fire to make lead fluid.
The first of these, as has been said, I think may be properly called real, original, or primary qualities; because they are in the things themselves, whether they are perceived or not: and upon their different modifications it is that the secondary qualities depend.
The other two are only powers to act differently upon other things: which powers result from the different modifications of those primary qualities.
24.

The first are Resemblances; the second thought to be Resemblances, but are not, the third neither are nor are thought so.
But, though the two latter sorts of qualities are powers barely, and nothing but powers, relating to several other bodies, and resulting from the different modifications of the original qualities, yet they are generally otherwise thought of.

For the SECOND sort, viz.


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