the name of that
colour he has observed in snow or milk, will not be apt to misapply that
word, as long as he retains that idea; which when he has quite lost, he
is not apt to mistake the meaning of it, but perceives he understands it
not. There is neither a multiplicity of simple ideas to be put together,
which makes the doubtfulness in the names of mixed modes; nor a
supposed, but an unknown, real essence, with properties depending
thereon, the precise number whereof is also unknown, which makes the
difficulty in the names of substances. But, on the contrary, in simple
ideas the whole signification of the name is known at once, and consists
not of parts, whereof more or less being put in, the idea may be varied,
and so the signification of name be obscure, or uncertain.

16. Simple Ideas have few Ascents in linea praedicamentali.

Fifthly, This further may be observed concerning simple Simple ideas and
their names, that they have but few ascents in linea praedicamentali,
(as they call it,) from the lowest species to the summum genus. The
reason whereof is, that the lowest species being but one simple idea,
nothing can be left out of it, that so the difference being taken away,
it may agree with some other thing in one idea common to them both;
which, having one name, is the genus of the other two: v.g. there is
nothing that can be left out of the idea of white and red to make
them agree in one common appearance, and so have one general name; as
RATIONALITY being left out of the complex idea of man, makes it agree
with brute in the more general idea and name of animal. And therefore
when, to avoid unpleasant enumerations, men would comprehend both white
and red, and several other such simple ideas, under one general name,
they have been fain to do it by a word which denotes only the way they
get into the mind. For when white, red, and yellow are all comprehended
under the genus or name colour, it signifies no more but such ideas
as are produced in the mind only by the sight, and have entrance only
through the eyes. And when they would frame yet a more general term to
comprehend both colours and sounds, and the like simple ideas, they do
it by a word that signifies all such as come into the mind only by one
sense. And so the general term QUALITY, in its ordinary acceptation,
comprehends colours, sounds, tastes, smells, and tangible qualities,
with distinction from extension, number, motion, pleasure, and pain,
which