Knowledge is pre-eminently movement; for it is the intuition of
essence; it is an actualization, and not a simple habit. It should,
therefore, also be reduced to movement.[299] It may also be reduced to
stability (if considered as a durable actualization); or rather, it
belongs to both genera. But if it belong to two different genera, it is
something of a blend; but anything blended is necessarily posterior (to
the elements which enter into the blend, and it cannot therefore either
be a primary genus).