Leave out of the idea of ANIMAL, sense and spontaneous motion, and the remaining complex idea, made up of the remaining simple ones of body, life, and nourishment, becomes a more general one, under the more comprehensive term, VIVENS.

And, not to dwell longer upon this particular, so evident in itself; by the same way the mind proceeds to BODY, SUBSTANCE, and at last to BEING, THING, and such universal terms, which stand for any of our ideas whatsoever.

To conclude: this whole mystery of genera and species, which make such a noise in the schools, and are with justice so little regarded out of them, is nothing else but ABSTRACT IDEAS, more or less comprehensive, with names annexed to them.
In all which this is constant and unvariable, That every more general term stands for such an idea, and is but a part of any of those contained under it.
10.

Why the Genus is ordinarily made Use of in Definitions.
This may show us the reason why, in the defining of words, which is nothing but declaring their signification, we make use of the GENUS, or next general word that comprehends it.

Which is not out of necessity, but only to save the labour of enumerating the several simple ideas which the next general word or GENUS stands for; or, perhaps, sometimes the shame of not being able to do it.