Online research in philosophy

After Brentano, intentionality is often characterized as “the mark of the mental”. In Brentano‟s view, intentionality “is characteristic exclusively of mental phenomena. No physical phenomenon manifests anything like it”. 2 After Meinong, it is also generally believed that intentionality, as this characteristic mental phenomenon, concerns a specific type of objects, namely, intentional objects, having intentional inexistence, as opposed to ordinary physical objects, having real existence. Thus, intentional objects are supposed to constitute a mysterious ontological realm, the dwelling place of the objects of dreams and fiction, and other “weird entities”, even inconsistent objects, such as round squares. Finally, it is also generally held that intentionality somehow defies logic, as the well-known phenomena of the breakdown of the substitutivity of identicals, the failure of existential generalization, and generally the strange behavior of quantification in intentional contexts testify. In this paper, I will refer to these positions as the psychological, ontological, and logical “myths of intentionality”, respectively. The reason is that although this important modern notion of intentionality and the positions involving it are supposed to have come from medieval philosophy, medieval philosophers would be starkly opposed to them. On the basis of the relevant doctrines of some medieval philosophers, especially, Aquinas and Buridan, this paper is going to argue that the three positions on intentionality described above are in fact just three modern myths.

This paper proposes interpretations of the vexed notions of intensionality and intentionality and then investigates their resulting interrelations.The notion of intentionality comes from Brentano, in connection with his view that it can help us understand the mental. Setting aside Husserl’s basic definition of intentionality as not quite in line with Brentano’s explanatory purpose, this paper proposes that intentionality be defined in terms of inexistence and indeterminacy.It results that Brentano’s thesis (that all and only mental phenomena are intentional) will not be strictly true. However, intentional descriptions will always be intensional, though not all intensional descriptions will be intentional.

The early Brentano identifies intentionality with intentional inexistence, i.e., with a kind of indwelling of the intentional object in the mind. The latter concept cannot be grasped apart from its scholastic background and the Aristotelian—Thomistic doctrine of the multiple use of being (to on legetai pollachos). The fact that Brentano abandoned the theory of the intentional inexistence in the course of time does not contradict the thesis that it is intentional inexistence and not the modern conception of reference or directedness to something other which comprises the essence of intentionality for the early Brentano.

Kraus, O. Biographical sketch of Franz Brentano.--Stumpf, C. Reminiscences of Franz Brentano.--Husserl, E. Reminiscences of Franz Brentano.--Gilson, E. Brentano's interpretation of medieval philosophy.--Gilson, L. Franz Brentano on science and philosophy.--Titchener, E. B. Brentano and Wundt: empirical and experimental psychology.--Chisholm, R. M. Brentano's descriptive psychology.--De Boer, T. The descriptive method of Franz Brentano.--Spiegelberg, H. Intention and intentionality in the scholastics, Brentano and Husserl.--Marras, A. Scholastic roots of Brentano's conception of intentionality.--Chisholm, R. M. Intentional inexistence.--McAlister, L. L. Chisholm and Brentano on intentionality.--Chisholm, R. M. Brentano's theory of correct and incorrect emotion.--Moore, G. E. Review of Franz Brentano's The origin of the knowledge of right and wrong.--Franks, G. Was G. E. Moore mistaken about Brentano?--Kotarbinski, T. Franz Brentano as reist.--Terrell, D.B. Brentano's argument for reismus.--Bergman, H. Brentano's theory of induction.--Kraus, O. Toward a phenomenognosy of time consciousness.

Roderick Chisholm provides, in different places, two formulations of Brentano's thesis about the relation between the psychological and the intentional: (1) all and only psychological sentences are intentional; (2) no psychological intentional sentence is equivalent to a nonintentional sentence. Chisholm also presents several definitions of intentionality. Some of these allow that a sentence is intentional while its negation is nonintentional, which ruins the prospects of defending the more plausible and interesting thesis (2). A generalization of the notion of logical independence to any number of mutually independent sentences permits a revision of Chisholm's criteria of intentionality that ensures that a sentence is intentional on a criterion exactly when its negation is as well.

Franz Brentano developed an original theory of intrinsic value which he attempted to base on his philosophical psychology. Roderick Chisholm presents here a critical exposition of this theory and its place in Brentano's general philosophical system. He gives a detailed account of Brentano's ontology, showing how Brentano tried to secure objectivity for ethics not through a theory of practical reason, but through his theory of the intentional objects of emotions and desires. Professor Chisholm goes on to develop certain suggestions about intrinsic value made by Brentano and his students, and discusses their relevance to theodicy and the problem of evil. Brentano, as the teacher of Husserl, Meinong, Twardowski, and others, stands at the origin of the phenomenological tradition and of the Polish school of philosophy that developed after World War I. He has also had considerable influence on Anglo-American philosophy. This book will interest those concerned with the origins of phenomenological value theory and more generally with the connections between ethics and philosophical psychology.