Under the Reign of Terror he was arrested and imprisoned for nearly a year, during which he studied Condillac and Locke, and abandoned the natural sciences for philosophy.
Destutt de Tracy was the last eminent representative of the sensualistic school which Condillac founded in France upon a one-sided interpretation of Locke.
She read widely though unsystematically, studying philosophy in Aristotle, Leibnitz, Locke and Condillac, and feeding her imagination with Rene and Childe Harold.
Though it never ceased to influence individual thinkers, it had handed on to Condillac its popularity with the masses.
through Condillac, the inconsistencies were purged out, and materialism was ready for the next comer to affirm - though it may be said with R.