the fact that the sense-organs are not phenomena in the sense of the
idealistic philosophy; as such they certainly could not be causes!
Sensualism, therefore, at least as regulative hypothesis, if not as
heuristic principle. What? And others say even that the external world
is the work of our organs? But then our body, as a part of this external
world, would be the work of our organs! But then our organs themselves
would be the work of our organs! It seems to me that this is a
complete REDUCTIO AD ABSURDUM, if the conception CAUSA SUI is something
fundamentally absurd. Consequently, the external world is NOT the work
of our organs--?