Matter, ontology, metaphysics

There is only evidence that there is matter. This is a question of ontology (of what exists), not of metaphysics (of the nature of that which exists). So we should talk about metaphysics as other than a fact of it being discussed, its “existence” is only that of being a concept.

Knowing and knowledge

The process of knowing is specific to time and place, that is, knowing is a temporal and spatial process of a thing. But knowledge as objects of the mind are atemporal and aspatial. Often, we confuse knowledge for knowing, but rarely do we make the reverse mistake.