René-Joseph de Tournemine (1661, Rennes

Rennes

Rennes is a city in the east of Brittany in northwestern France. Rennes is the capital of the region of Brittany, as well as the Ille-et-Vilaine department.-History:...

 – 1739) was a French Jesuit theologian and philosopher. He founded the Mémoires de Trévoux, the Jesuit learned journal published from 1701 to 1767, and assailed Nicolas Malebranche

Nicolas Malebranche

Nicolas Malebranche ; was a French Oratorian and rationalist philosopher. In his works, he sought to synthesize the thought of St. Augustine and Descartes, in order to demonstrate the active role of God in every aspect of the world...

 with the charges of atheism

Atheism

Atheism is, in a broad sense, the rejection of belief in the existence of deities. In a narrower sense, atheism is specifically the position that there are no deities...

 and Spinozism

Spinozism

Spinozism is the monist philosophical system of Baruch Spinoza which defines "God" as a singular self-subsistent substance, and both matter and thought as attributes of such...

.

His Réflexions sur l'athéisme originated as a preface to the Traité de l'existence de Dieu (1713) by Fénelon, and was an effective direct attack on Spinoza; it argued that 'Spinozism' wasn't practically tenable.

A debate with Leibniz on the mind-body problem was prominent in the period.

Tournemine taught the young Voltaire

Voltaire

François-Marie Arouet , better known by the pen name Voltaire , was a French Enlightenment writer, historian and philosopher famous for his wit and for his advocacy of civil liberties, including freedom of religion, free trade and separation of church and state...

, and became a friend. In correspondence from 1735, however, Voltaire was critical of the Jesuit reception of Newton and Locke.