similitude with the one Science and with the other.

Again, by the two movements it signifies these two Sciences: for by
the movement in which every day revolves, and makes a new revolution
from point to point, it signifies things natural and corruptible which
daily complete their path, and their material is changed from form to
form; and of this the Science of Physics treats. And by the almost
insensible movement which it makes from West to East by one degree in
a hundred years, it signifies things incorruptible, which received
from God the beginning of their creation, and will have no end; but of
these Metaphysics treats. Therefore I say that this movement signifies
those things, for it began this revolution which will have no end; the
end of the revolution being to return to one self-same point, to which
this Heaven will not return by this movement, which has revolved a
little more than the sixth part from the commencement of the world;
and we are now in the last age of the world, and verily we wait the
consummation of the celestial movement. Thus it is evident that the
Starry Heaven, on account of many properties, may be compared to the
Science of Physics and Metaphysics.

The Crystalline Heaven, which, as the Primum Mobile, has been
previously counted, has a sufficiently evident comparison to Moral
Philosophy; for Moral Philosophy, according to what Tommaso says upon
the second book of the Ethics, teaches us method in the other
Sciences.

For as the Philosopher says in the fifth book of the Ethics, legal
Justice requires the Sciences to be learnt, and commands, in order
that they may not be abandoned, that they be learnt and taught: thus,
the said Heaven rules with its movement the daily revolution of all