Pantheism is the belief that the Universe (or nature as the totality of everything) is identical with divinity, or that everything composes an all-encompassing, immanent god. Pantheists thus do not believe in a distinct personal or anthropomorphic god. In the West, Pantheism was formalized as a separate theology and philosophy based on the work of the 17th-century philosopher Baruch Spinoza, whose book Ethics was an answer to Descartes' famous dualist theory that the body and spirit are separate. Although the term pantheism was not coined until after his death, Spinoza is regarded as its most celebrated advocate. This reverence for nature went hand in hand with a sympathy for childhood. Like Blake, Wordsworth understands childhood as a quality of imagination which has not been spoilt by the rational world of adults. The child possesses an instinctive superior wisdom which is lost in adulthood. Wordsworth believed that intuition, not reason, should guide the poet. Inspiration should come from the direct experience of the senses. Poetry, he wrote in the Preface, originates from “the spontaneous overflow of powerful feelings” which is filtered through the “emotion recollected in Content tranquility”. For Wordsworth the memory was a key element in poetic composition. The “spontaneous overflow” occurs at the moment of composition, but the feelings are newly contemplated and organized in the poet’s mind through the subjective experience of memory. The poet, Wordsworth says, is “a man speaking to men”, but he is also, “a man, it is true, endowed with more lively sensibility, more enthusiasm and tenderness, who has a greater knowledge of human nature, and a more comprehensive soul, than are supposed to be common among mankind”. The poet is a prophet-like figure whose task is not simply to embellish everyday life, but to show other men the essence of things. Wordsworth was a great innovator. His ideas concerning the task of the poet and the nature of poetical composition have become a landmark in the history of English literature and much of his earlier verse is among the finest of the Romantic period.