BOOK I PART IV
of the fictions of the antient philosophy, con-
cerning substances, and substantial form, and
accidents, and occult qualities; which, however
unreasonable and capricious, have a very inti-
mate connexion with the principles of human
nature.
It is confest by the most judicious philoso-
phers, that our ideas of bodies are nothing but
collections formed by the mind of the ideas of
the several distinct sensible qualities, of which
objects are composed, and which we find to
have a constant union with each other. But
however these qualities may in themselves be
entirely distinct, it is certain we commonly re-
gard the compound, which they form, as ONE
thing, and as continuing thesameunder very
considerable alterations. The acknowledged
composition is evidently contrary to this sup-