(13:31) I should feel bound to explain and demonstrate this point at more
length, if I were writing a special treatise on body. (32) But I have
already said that such is not my object, (13:33) I have only touched on
the question, because it enables me to prove easily that which I have in
view.
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[POSTULATES]
[Po.I] The human body is composed of a number of individual parts,
of diverse nature, each one of which is in itself extremely
complex.
[Po.II] Of the individual parts composing the human body some are
fluid, some soft, some hard.
[Po.III] The individual parts composing the human body, and
consequently the human body itself, are affected in
a variety of ways by external bodies.
[Po.IV] The human body stands in need for its preservation of
a number of other bodies, by which it is continually,
so to speak, regenerated.
[Po.V] When the fluid part of the human body is determined by an
external body to impinge often on another soft part, it
changes the surface of the latter, and, as it were, leaves
the impression thereupon of the external body which impels it.
[Po.VI] The human body can move external bodies, and arrange them in
a variety of ways.
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Prop.
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