Karol Klemens Poznański, a scientist and professor a positivist

Aim: The presented essay was prepared in connection with the 91st birthday anniversary of Prof. Karol Poznański, which falls in February 2022. Over 60 years of acquaintance with the professor prompted the author to reflect on his rich, many-sided personality. Methods: In order to present his profile and evaluation, a retrospective analysis of the images preserved in the author’s memory of the professor’s behaviour towards both colleagues, staff and students was used. Synthesising and evaluating the scientific achievements of the distinguished jubilarian was to some extent facilitated by the reference books, especially publications directly dedicated to him. Results: The profile of Prof. Poznański has been presented based on personal memories and literature. Conclusions: In the era of confusion of notions and values, concerning also many representatives of the academic teachers, the presentation of the professor’s profile was considered necessary for cognitive and application reasons