BODY AND PRACTICE IN KANT

QUANTITY 269
associated with four basic ways in which time is transcendentally
determined, having to do with; 1) the flow of time; 2) the content of time;
3) the order of time; and, finally, what Kant calls 4) the sum total of time
in regard to all possible objects [Zeitinbegriff in Ansehung aller
möglichen Gegenstände]. In what follows I shall examine the category of
quantity in general and argue that it is possible to interpret Kant’s theory
of this category and its schematization as referring to embodied practice.
9.2 Quantity
Now, let us turn to see what Kant has to say about quantity and time.
Discussing the concept of quantity, he explains that while the pure image
of all quantity of the outer sense is space, the pure image of all quantity
whatsoever is time. The pure schema corresponding to this general
concept of quantity is number, which again is a representation of the
successive addition of one equal element to another. Thus he concludes
that number is nothing else than the unity of the synthesis of the
manifold of a homogenous intuition in general, as the subject himself
creates time in his apprehension of an intuition:
The pure image of all magnitudes (quantorum) for outer sense is
space; for all objects of the senses in general, it is time. The pure
schema of magnitude (quantitatis), however, as a concept of the
understanding, is number, which is a representation that summarizes
the successive addition of one (homogeneous) unit to another. Thus
number is nothing other than the unity of the synthesis of the
manifold of a homogeneous intuition in general, because I generate
[erzeuge] time itself in the apprehension of the intuition. (A142/B
182)
The passage is loaded with information. First, the fact that Kant claims
that number is the pure schema of quantity, considered as a concept of
the understanding, suggests that the theory now promoted refers back to
the first example of the schematism chapter, the example of number.
Number, he argues, is the pure schema of quantity in general. Quantity,
however, has two pure images: the pure image of quantity corresponding
to the outer sense is space and the pure image of quantity corresponding
to the inner sense is time. Also worth noting is the fact that time, which
by now is firmly established as the form of all intuition, is explicitly
described as the product of our own activity, more specifically, time is
said to be produced [erzeugt] by the synthesis of the manifold of an
homogenous [gleichartigen] intuition, or in short, by our apprehension of