No one savage, at no one time, would have all these thoughts of his God.

He is the representative of what has been thought, during centuries, by many thousands of men; the concentration into one mind of the ground-thoughts of early theology.

At one point, as if Browning wished to sketch the beginning of a new theological period, Caliban represents a more advanced thought than savage man conceives.

This is Caliban's imagination of a higher being than Setebos who is the capricious creator and power of the earth--of the "Quiet," who is master of Setebos and whose temper is quite different; who also made the stars, things which Caliban, with a touch of Browning's subtle thought, separates from the sun and moon and earth.

It is plain from this, and from the whole argument which is admirably conducted, that Caliban is an intellectual personage, too long neglected; and Prospero, could he have understood his nature, would have enjoyed his conversation.