of unconscious elements. In this case we remain in the world of
sensation and of nature. Further, if with certain associationists we
speak of an association which is neither memory nor flux of sensations,
but is a _productive_ association (formative, constructive,
distinguishing); then we admit the thing itself and deny only its name.
In truth, productive association is no longer association in the sense
of the sensualists, but _synthesis_, that is to say, spiritual activity.
Synthesis may be called association; but with the concept of
productivity is already posited the distinction between passivity and
activity, between sensation and intuition.

[Sidenote] _Intuition and representation._

Other psychologists are disposed to distinguish from sensation something
which is sensation no longer, but is not yet intellective concept: _the
representation or image_. What is the difference between their
representation or image, and our intuitive knowledge? The greatest, and
none at all. "Representation," too, is a very equivocal word. If by
representation be understood something detached and standing out from
the psychic base of the sensations, then representation is intuition.
If, on the other hand, it be conceived as a complex sensation, a return
is made to simple sensation, which does not change its quality according
to its richness or poverty, operating alike in a rudimentary or in a
developed organism full of traces of past sensations. Nor is the
equivoque remedied by defining representation as a psychic product of
secondary order in relation to sensation, which should occupy the first
place. What does secondary order mean here? Does it mean a qualitative,
a formal difference? If so, we agree: representation is elaboration of
sensation, it is intuition. Or does it mean greater complexity and
complication, a quantitative, material difference? In that case