We are not compelled in naturalism, or even in materialism, to ignore immaterial things; the point is that any immaterial things which are recognized shall be regarded as names, aspects, functions, or concomitant products of those physical things among which action goes on.
George Santayana (1937). “The Works of George Santayana: Character and opinion in the United States. The genteel tradition at bay. Dewey's naturalistic metaphysics. Philosophical heresy”
