THE SEVENTH TROPE.
The seventh Trope is the one which, as we said, is based 129
upon the quantity and constitution of objects, constitution
commonly meaning composition. And it is evident that we are
obliged to suspend our judgment according to this Trope also in
regard to the nature of things. As for example, filings from the
horn of the goat appear white when they are seen separately and
without being put together; put together, however, in the form
of a horn, they look black. And the parts of silver, the filings
that is, by themselves appear black, but as a whole appear
white; and parts of the Taenarus stone look white when ground,
but in the whole stone appear yellow; grains of sand 130
scattered apart from each other appear to be rough, but put
together in a heap, they produce a soft feeling; hellebore taken
fine and downy, causes choking, but it no longer does so when
taken coarse; wine also taken moderately strengthens us, but 131
when taken in excess relaxes the body; food similarly, has a
different effect according to the quantity, at least, it often
disturbs the body when too much is taken, causing dyspepsia and
discharge. We shall be able here also to say of what kind 132
the cutting from the horn is, and what many cuttings put
together are, of what kind a filing of silver is, and what many
of them put together are, of what kind the tiny Taenarus stone,
and what one composed of many small ones is, and in regard to
the grains of sand, and the hellebore, and the wine, and the
food, what they are in relation, but no longer the nature of the
thing by itself, because of the anomaly in the ideas which we
have of things, according to the way in which they are put
together.
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