  Kazimierz Twardowski (1866–1938) began his post as professor of philosophy at Lvov University in 1895. He came to Lvov from Vienna, where he had studied philosophy under Franz Brentano and Robert Zimmermann. Twardowski belonged to the last group of Brentano’s students. His Habilitationschrift (1894) concerned the concepts of the content and the object of presentations; it  clarified and sharpened this important distinction. This work strongly influenced Meinong and Husserl.