(c) Two things are called one, when the definition which states
the essence of one is indivisible from another definition which
shows us the other (though in itself every definition is divisible).
Thus even that which has increased or is diminishing is one, because
its definition is one, as, in the case of plane figures, is the
definition of their form. In general those things the thought of whose
essence is indivisible, and cannot separate them either in time or
in place or in definition, are most of all one, and of these
especially those which are substances. For in general those things
that do not admit of division are called one in so far as they do
not admit of it; e.g. if two things are indistinguishable qua man,
they are one kind of man; if qua animal, one kind of animal; if qua
magnitude, one kind of magnitude.-Now most things are called one
because they either do or have or suffer or are related to something
else that is one, but the things that are primarily called one are
those whose substance is one,-and one either in continuity or in
form or in definition; for we count as more than one either things
that are not continuous, or those whose form is not one, or those
whose definition is not one.
While in a sense we call anything one if it is a quantity and
continuous, in a sense we do not unless it is a whole, i.e. unless
it has unity of form; e.g. if we saw the parts of a shoe put
together anyhow we should not call them one all the same (unless
because of their continuity); we do this only if they are put together
so as to be a shoe and to have already a certain single form.
Pages:
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126