Catholic Dictionary

Term

METAPHYSICAL DUALISM

Definition

A theory of reality that claims that the coexistence of good and evil in the world postulates the pre-existence of two eternal first principles, one good and the other evil. Manichaeism is the best known form of metaphysical dualism. It is implicit, however, in every philosophy that minimizes (or eliminates) man's responsibility for his actions, especially for his misdeeds.