prepossession! Let us quit the heavy atmosphere in which we are
enucleated; let us in a more unsullied medium--in a more elastic
current, contemplate the opinions of men, and observe their various
systems. Let us learn to distrust a disordered conception; let us take
that faithful monitor, experience, for our guide; let us consult Nature,
examine her laws, dive into her stores; let us draw from herself, our
ideas of the beings she contains; let us recover our senses, which
interested error has taught us to suspect; let us consult that reason,
which, for the vilest purposes has been so infamously calumniated, so
cruelly dishonoured; let us examine with attention the visible world;
let us try, if it will not enable us to form a supportable judgment of
the invisible territory of the intellectual world: perhaps it may be
found there has been no sufficient reason for distinguishing them--that
it is not without motives, well worthy our enquiry, that two empires
have been separated, which are equally the inheritance of nature.

The universe, that vast assemblage of every thing that exists, presents
only matter and motion: the whole offers to our contemplation, nothing
but an immense, an uninterrupted succession of causes and effects; some
of these causes are known to us, because they either strike immediately
on our senses, or have been brought under their cognizance, by the
examination of long experience; others are unknown to us, because they
act upon us by effects, frequently very remote from their primary cause.
An immense variety of matter, combined under an infinity of forms,
incessantly communicates, unceasingly receives a diversity of impulses.
The different qualities of this matter, its innumerable combinations,
its various methods of action, which are the necessary consequence of
these associations, constitute for man what he calls the ESSENCE of
beings: it is from these varied essences that spring the orders, the
classes, or the systems, which these beings respectively possess, of