Rentano ’ S P Sychology and L Ogic and the B Asis of T Wardowski ’ S T Heory of P Resentations

It is widely known that Kasimir Twardowski was a student of Franz Brentano. In view of the fact that Brentano generally had great impact through his lectures, especially during his Vienna period (18741895), and consequently became one of the towering figures of Austrian philosophy, it is a matter of no small interest to determine how he influenced Twardowski. There are, however, difficulties in examining the relationship of Twardowski to his teacher, as there are in the case of the relationships between Brentano and his students generally. The main obstacle to this endeavor lies in the fact that Brentano published very little during his lifetime. Moreover, what has been published posthumously is far from adequate in terms of both the quantity of texts and the quality of editing. For this reason it is highly desirable to discuss Brentano in relation to his students by drawing upon his hitherto unpublished manuscripts. This is the strategy that I will pursue in the following analysis of Brentano and Twardowski on the topic of presentations (Vorstellungen).