By analogy to the element of the stars: the divine in Jean Fernel's and William Harvey's theories of generation

ABSTRACT

In trying to develop their respective theories of generation, Jean Fernel and William Harvey both drew repeatedly on Aristotle's suggestion that something “analogous to the element of the stars” was involved. The analogy with the stars suggested something celestial or divine, and both thinkers subscribed to the dominant assumption that God is the primary cause of generation, but, as natural philosophers, they were expected to develop theories based on secondary causes. Fernel simply defined “divine” as “hidden” or “occult”, and developed a sophisticated occult explanation of how generation takes place. Harvey, by contrast, rejected occult explanations, and, although offering tentative alternatives, ultimately failed to discover any convincing naturalistic account. It is the contention of this paper that Harvey resorted, therefore, to the direct intervention of God in the process of generation.