Abstract
Separate Austrian influences, those of Bolzano and Brentano, came together in the work of Kazimierz Twardowski, the founder of the Lvov–Warsaw School and Polish analytic philosophy. From Bolzano he took the ideas of abstract content and absolute truth; from Brentano the centrality of intentionality and the role of psychology, and from both an awareness of the historical depth of philosophy. These streams flowed together in and through him to form central doctrines, attitudes and practices of that School, from its origins in 1895 to its continuation in contemporary Polish philosophy.