The Passive and Active Intellects
Or
How exactly are concepts formed in human beings?

By: Dr. F. F. Centore

To know means grasping the common aspect apart from individuating aspects. How can the intellect come to know the essence of a material thing? What follows might be the case.

We know the two ends of the process; we speculate about what goes on in between.

The Phantasm 
  • either a percept or image
  • starting point of intellectual cognition
  • essence in phantasm is potentially intelligible
  • red rose not just red.
Agent intellect
  • not little man inside mind.
  • like an X-ray.
  • "Abstraction" is the illumination of the phantasm by the Active Intellect.
  • We are not directly conscious of the Active Intellect.

Impressed intelligible species -- abstracted essece.

Possible intellect -- does actual knowing. Concept -- knower becomes the known without destroying the known. Mind knows only while knowing.
Concepts do not exist before produced by mind.
One essence has both physical and intentional existence.
Mind depends upon senses to know individuals.
Essence includes matter and form.
Ego transcends its acts. Ego knows itself through its acts.
Ego knows objects, then its own activity, then the nature of itself.
Man is a psycho-somatic composite.
The presence of things in us is a condition for the birth (conception) of ideas.

In abstraction the mind considers one aspect of a thing apart from its numerous other aspects. In reality, though, all aspects exist together simultaneously outside the mind. Far from being deceptive, abstraction is man's only way of knowing intellectually. Man cannot know everything at a glance but must gather knowledge piece-meal. A man must often learn by contemplation what he already knows implicitly--that is,, by reflecting upon what has been abstracted--i.e., each species belongs to a genus, but the genus cannot be known before one species is compared with another.

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