 According to Hegel, art may be further analyzed in terms of a triadic structure, in such a way that we may distinguish its development through symbolic, classical, and romantic art. Hegel’s system of the individual arts is dependent on this historical unfolding, as the various art forms are differently suited to each of the three stages. Symbolic art falls short of art proper, and is in fact described by Hegel as pre-art (Vorkunst), as it limits itself to offering symbols of the Spirit, as opposed to giving an adequate sensory presentation of its freedom. Classical art is art at its fullest, as it gives a perfectly adequate sensuous presentation of the spiritual. Hegel holds that this is best exemplified by classical Greek art, and particularly sculpture. Romantic art (by which Hegel means Christian art from the Middle Ages onwards) is characterized by the expression of a content that transcends the visible realm, since it expresses an inward freedom, as opposed to an external one. Hegel writes: