On the Fourfold Root of the Principle of Sufficient Reason, and On the Will in Nature: Two Essays (revised edition)
Schopenhauer · en
But it is quite possible for these very things in themselves
to have relations with us from which the above-mentioned occurrences
may have arisen, concerning which accordingly we have to wait for the
decision _à posteriori_, and must not forestall it. That the English
and French should persist in denying _à priori_ all such occurrences,
comes at the bottom from the influence of Locke's philosophy, under
which these nations still stand as to all essential points, and by
which we are taught that, after merely subtracting sensation, we know
things in themselves. According to this view therefore, the laws of the
material world are held to be ultimate, and no other influence than
_influxus physicus_ is admitted. Consequently these nations believe,
it is true, in a physical, but not in a metaphysical, science, and
therefore reject all other than so-called "Natural Magic:" a term
which contains the same _contradictio in adjecto_ as "Supernatural
Physics," but is nevertheless constantly used quite seriously, while
the latter was used but once, and then in joke, by Lichtenberg. On the
other hand, the common people, with their universal readiness to give
credit to supernatural influences, express by it in their own way the
conviction, that all things which we perceive and comprehend are mere
phenomena, not things in themselves; although, with them, conviction is
only felt. I quote the following passage from Kant's "Grundlegung zur
Metaphysik der Sitten," as a proof that this is not saying too much:
"There is an observation requiring no great subtlety of reflection,
which we may on the contrary suppose the most ordinary understanding
capable of making, albeit in its own way and by an obscure distinction
of the faculty of judgment, which it calls feeling. It is this: that
all our involuntary representations (such as those of the senses) give
us no further knowledge of objects than as they affect us, whereby we
are left in ignorance as to what those objects may be in themselves;
that, as far as this sort of representation is concerned therefore, we
are still only able by this means to attain knowledge of phenomena, but
never of _things in themselves_, even by dint of the utmost clearness
and the most strenuous attention the understanding is able to give to
this point. When once this distinction is made, however, it stands to
reason, that the existence of something else behind these phenomena,
something which is not phenomenon, _i.e._ the thing in itself, has
still to be admitted and assumed."[303]
[303] Kant, "First Principles of Ethical Metaphysic," 3rd edition,
p. 105.