In this thought-provoking work, Léon Dewaule explores the intersection between the ideas of the 18th-century French philosopher Étienne Bonnot de Condillac and contemporary English psychology. By tracing the influence of Condillac's thinking on the development of English psychology, Dewaule provides a fascinating glimpse into the history of these two intellectual traditions. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.