Truth is born into this world only with pangs and tribulations, and every fresh truth is received unwillingly.
Alfred Russel WallaceOn the spiritual theory, man consists essentially of a spiritual nature or mind intimately associated with a spiritual body or soul, both of which are developed in and by means of a material organism
Alfred Russel WallaceTo say that mind is a product or function of protoplasm, or of its molecular changes, is to use words to which we can attach no clear conception
Alfred Russel Wallace