A System of Metaphysics

absolutely absurd actual admit analogy appears argument assume atoms believe body changes Chapter clear Clifford color complex conceive conception consciousness definite deny Descartes distinction distinguish doctrine efficient cause elements ence evidence existence experience explain external things external world feelings final cause given human ideas inference infinite infinitely divisible intuition Kantian knowledge Lucretius material things material world matter mean measuring rod mechanism mental facts mental phenomena merely metaphysical metaphysician motion nature nerve ness noumenon objective order parallelism parallelist perceive perception phenomenon philosopher physical physiologist pineal gland plain possible present prove psychologist question RCCB real things real world reality reason recognize referred regard relation represent retina revealed rience sciousness seems seen sensations sense sense-impressions sensory nerves sort space speak Spinoza stand statement subjective substance suppose telephone exchange thought tion touch true truth Unknowable whole wholly word