2. Made by the power of composing in the mind.
These collective ideas of substances the mind makes, by its
power of composition, and uniting severally either simple or complex ideas into one, as it does, by the same
faculty, make the complex ideas of particular substances, consisting of an aggregate of divers simple ideas, united
in one substance. And as the mind, by putting together the repeated ideas of unity, makes the collective mode, or
complex idea, of any number, as a score, or a gross, etc.,--so, by putting together several particular substances, it
makes collective ideas of substances, as a troop, an army, a swarm, a city, a fleet; each of which every one finds
that he represents to his own mind by one idea, in one view; and so under that notion considers those several
things as perfectly one, as one ship, or one atom. Nor is it harder to conceive how an army of ten thousand men
should make one idea, than how a man should make one idea; it being as easy to the mind to unite into one the
idea of a great number of men, and consider it as one, as it is to unite into one particular all the distinct ideas that
make up the composition of a man, and consider them all together as one.
