Influential American philosopher and teacher, who spent virtually his entire career at Brown University. His work is characterized by scrupulous and often elaborate attention to detail. He was among the first to develop an adverbial theory of perception, and to bring Brentano to the attention of American philosophers. Works include Perceiving: A Philosophical Study (1957), Person and Object: A Metaphysical Study (1976), and. The First Person: An Essay on Reference and Intentionality (1981).