Anton Marty (Schwyz, 1847-Prague, 1914) contributed significantly to some of the central themes of Austrian philosophy. This collection contributes to assessing the specificity of his theses in relation with other Austrian philosophers. Although strongly inspired by his master, Franz Brentano, Marty developed his own theory of intentionality, understood as a sui generis relation of similarity. Moreover, he established a comprehensive philosophy of language, or semasiology, based on descriptive psychology, and in which the utterer's meaning plays a central role, anticipating Grice's pragmatic semantics. The present volume, including sixteen articles by scholars in the field of the history of Austrian philosophy and in contemporary philosophy, aims at exposing some of Marty's most important contributions in philosophy of mind and language, but also in other fields of research such as ontology and metaphysics. As archive material, the volume contains the edition of a correspondence between Marty and Hans Cornelius on similarity. This book will interest scholars in the fields of the history of philosophy in the 19th and 20th centuries, historians of phenomenology, and, more broadly, contemporary theoretical philosophers.