5. The cause of making mixed modes.
If we should inquire a little further, to see what it is that occasions men to
make several combinations of simple ideas into distinct, and, as it were, settled modes, and neglect others, which
in the nature of things themselves, have as much an aptness to be combined and make distinct ideas, we shall find
the reason of it to be the end of language; which being to mark, or communicate men's thoughts to one another
with all the dispatch that may be, they usually make such collections of ideas into complex modes, and affix
names to them, as they have frequent use of in their way of living and conversation, leaving others, which they
have but seldom an occasion to mention, loose and without names that tie them together: they rather choosing to
enumerate (when they have need) such ideas as make them up, by the particular names that stand for them, than to
trouble their memories by multiplying of complex ideas with names to them, which they seldom or never have
any occasion to make use of.