be assumed, be of constant recurrence; for, as physical
science advances, it will become more and more difficult
for the same party to attain to a large and solid acquaint-
ance with the attributes of mind (abstractions, that is),
and the knowledge of "external nature." The self-same
differences, in fact, which were delineated so graphically
by Aristotle, are still to be traced in our almost exclusive
attention to the physical sciences, and our disinclination
to admit, in our inquiries, of any proof but such as can be
tested through and by the senses and observation. The
terms here rendered physiologist and metaphysician (terms
unknown, by the way, to Aristotle) in the Latin version
are naturalis, and disserendi artifex; that of artisan is
faber; builder, artifex; and transcendental philosopher is
primus philosophus.
CHAPTER II.
Note 1, p. 19. Hence Democritus, &c.] None of the
works of this eminent man have come down to us; but
notices of his opinions lie scattered through the writings
of Aristotle, and these may suffice for the elucidation of
this and other allusions to him. Following his master
Leucippus, Democritus[1], abandoning metaphysical subtle-
ties, looked into the constitution of the external world for
- ↑ Metaphys. I. 4. 9.
