 Eternal objects can qualify (characterize) the objective content and the subjective form of the feelings that constitute actual entities. Eternal objects of the objective species are pure mathematical patterns: “Eternal objects of the objective species are the mathematical Platonic forms” (1929c [1985: 291]). An eternal object of the objective species can only qualify the objective content of a feeling, and “never be an element in the definiteness of a subjective form” (idem). Eternal objects of the subjective species, on the other hand, include sense data and values.