Gustav Bergmann (1906-1987) was, arguably, the greatest ontologist of the twentieth century in pursuing the fundamental questions of first philosophy as deeply as any philosopher of any time. In 2006 and 2007, international conferences devoted solely to Bergmann's work were held at the University of Iowa in the USA, Universite de Provence in France, and Universita degli Studi Roma Tre in Italy. The papers in this volume were presented at the first of these conferences, in Iowa City, where Bergmann taught for nearly four decades after escaping from Europe, following the dissolution of the...

In this collection of papers by Laird Addis, published over approximately a quarter century, the main topics are the ontology of mind and the role of mind in the explanation of behavior. Addis defends a theory of natural signs, by which there is, in every conscious state including emotional states, an intrinsically intentional entity. He also argues that explanations of behavior by dispositional mental states, while not themselves causal explanations, presuppose the possibility of such explanations. The theory of dispositions is applied also to the theories of Chomsky and Freud. In broad...