French scientist and man of letters Bernard Le Bovier, sieur de Fontenelle, educated at the Jesuit college in Rouen, did not settle in Paris until he had passed the age of thirty and had become famous as the writer of operatic librettos.
His literary activity during the years 1683–88 has won him a great reputation.
The Lettres galantes (1683, “Gallant Letters”; expanded edition, 1685) have contributed to this, but the Nouveaux Dialogues des morts (1683, “New Dialogues of the Dead”; 2nd part, 1684) enjoy a greater success (and is more interesting to a modern reader).
The Dialogues, conversations modeled on the dialogues of Lucian, between such figures as Socrates and Montaigne, Seneca and Scarron, have served to disseminate new philosophical ideas.
Fontenelle’s popularization of philosophy is carried further by the Histoire des oracles (1687; “History of the Oracles”), based on a Latin treatise by the Dutch writer Anton van Dale (1683).
Here Fontenelle subjects pagan religions to criticisms that the reader would inevitably see as applicable to Christianity as well.
The same anti-religious bias is seen in his amusing satire Relation de l'île de Bornéo (1686; “Account of the Island of Borneo”), in which a civil war in Borneo is used to symbolize the dissensions between Catholics (Rome) and Calvinists (Geneva).
Fontenelle's most famous work is the Entretiens sur la pluralité des mondes (1686; A Plurality of Worlds, 1688).
These charming and sophisticated dialogues are more influential than any other work in securing acceptance of the Copernican system, still far from commanding universal support in 1686.
Fontenelle's basis of scientific documentation is meager, and some of his figures are wildly erroneous even for his own day.
He was unfortunate in the moment of his publication: the Cartesian theory of vortices, on which his work was based, had been refuted the next year in Isaac Newton's Principia.
Described by Voltaire as the most universal mind produced by the era of Louis XIV, many of the characteristic ideas of the Enlightenment are found in embryonic form in his works.