=The Copernican hypothesis.=[131]--Kant’s comparison of his new hypothesis
to that of Copernicus has generally been misunderstood. The reader very
naturally conceives the Copernican revolution in terms of its main
ultimate consequence, the reduction of the earth from its proud position
of central pre-eminence. But that does not bear the least analogy to
the intended consequences of the Critical philosophy. The direct
opposite is indeed true. Kant’s hypothesis is inspired by the avowed
purpose of neutralising the naturalistic implications of the Copernican
astronomy. His aim is nothing less than the firm establishment of what
may perhaps be described as a Ptolemaic, anthropocentric metaphysics.
Such naturalistic philosophy as that of Hume may perhaps be described as
Copernican, but the Critical philosophy, as humanistic, has genuine
kinship with the Greek standpoint.
Even some of Kant’s best commentators have interpreted the analogy in
the above manner.[132] It is so interpreted by T. H. Green[133] and by
J. Hutchison Stirling.[134] Caird in his _Critical Philosophy of Kant_
makes not the least mention of the analogy, probably for the reason that
while reading it in the same fashion as Green, he recognised the
inappropriateness of the comparison as thus taken. The analogy is stated
in typically ambiguous fashion by Lange[135] and by Höffding.[136] S.
Alexander, while very forcibly insisting upon the Ptolemaic character of
the Kantian philosophy, also endorses this interpretation in the
following terms:
“It is very ironical that Kant himself signalised the revolution
which he believed himself to be effecting as a Copernican
revolution. But there is nothing Copernican in it except that he
believed it to be a revolution. If every change is Copernican which
reverses the order of the terms with which it deals, which declares
A to depend on B when B had before been declared to depend on A,
then Kant--who believed that he had reversed the order of
dependence of mind and things--was right in saying that he effected
a Copernican revolution. But he was not right in any other sense.
For his revolution, so far as it was one, was accurately
anti-Copernican.”[137]
As the second edition preface is not covered by the published volumes of
Vaihinger’s _Commentary_, the point has not been taken up by him.