4 Part Four
Objections to some opinions held
We want to advance some reasonable arguments against
the philosophers of old who invented the science of astronomy and reprehend
them on some points in which they erred in this science, and we also want
to prove that this science is not simply and necessarily true.
Thus we divide this part into two parts: first
we reprehend the astronomers of old and secondly we prove that this science
is not simply and necessarily true.
Next: misconceptions about
the signs and planets
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