The Existence of Matter The Problem of Perception and the External World.
Baruch Spinoza - Biography
Cook, John W. - Wittgenstein's Metaphysics
Zandonade810832.pdf
Consciousness. Descartes Believed that the Mind and the Brain were two separate things The mind is not made of matter, it is akin to the soul or the spirit.
Consciousness
Deity (Part II) * Chapter 8
Mind and Body
