Various, Encyclopaedia Britannica, 11th Edition…
“ Others, however, are more psychological, and these, though advocating the materialistic philosophy generally in vogue, were remarkable for uniting materialism with an honest adherence to Christianity. The half mystical writer, Louis Claude de Saint-Martin (1743-1803) also deserves notice. But the French metaphysician of the century is undoubtedly Étienne Bonnot, abbé de Condillac. Condillac (1714-1780) , almost the only writer of the time in France who succeeded in keeping strictly to philosophy without attempting to pursue his system to its results in ethics, politics and theology. ”
