In the Lvov-Warsaw school was created a certain model of practicing philosophy and solving philosophical problems. The influence of Polish analytical philosophers who were representatives of this school was very wide and not limited only to philosophy. The impact of subsequent generations of this school on Polish science (including the humanities and social sciences) is also noticeable after the end of World War II. By analyzing the literature and the tradition of the didactic work of the founders and subsequent continuators of the above-mentioned school, it is possible to reconstruct the general normative position regarding the accepted methodological and ethical pattern of scientific work. A special role in the continuation and popularization of the ideas propagated in that school fell to Jerzy Pelc. As an academic teacher and an influential organizer of scientific life, Pelc significantly contributed to the dissemination in Poland of methodological standards specific to the tradition of analytical philosophy.The aim of the paper is to present the metaphilosophical position taken by Pelc, expressed in the texts he published and implemented in his teaching practice. Based on the reading of these works and taking into account the requirements implemented in teaching work, a specific normative perspective emerges, defining a set of directives and recommendations regarding the way of practicing philosophy, including logical semiotics, as well as conducting humanities research as such. Pelc's preferred style of practicing philosophy clearly reflects the approach promoted by his own academic teachers and teachers of these direct teachers.