 Twardowski himself continued working at the border of psychology and logic; his pupils, however, generally split in their interests, specializing in either psychology or logic.The analytical program that Twardowski passed on to his pupils, and which they in turn spread throughout Poland, was affined to that of Franz Brentano's school (Twardowski's "alma mater") in Austria and to that of the British analytic school, which likewise had arisen as a reaction against speculative systems.The alumni of the Lwów school entered three distinct fields.