They represent a normal differentiation of interest which the individual mind, in the course of its own thinking, tends to follow.
"The Approach to Philosophy"
Ralph Barton Perry
But the significance of this difference will be better appreciated after a further differentiation of the metaphysical problem has been noted.
"The Approach to Philosophy"
Ralph Barton Perry
But enough has been said to demonstrate the interdependence of ontology and cosmology, of the theory of being and the theory of differentiation and process.
"The Approach to Philosophy"
Ralph Barton Perry