The aim here was to present in this article the most important ethical ideas expounded by the
representatives of the Lwów-Warsaw philosophical school and to indicate the characteristic
features of these ideas that could provide justification for speaking of a common methodological
and theoretical attitude held by these researchers.
The ethical theses of the representatives of this school are presented and are next compared
with the point of view of K. Twardowski, attempting to evaluate these theses and to decide how
far it is justified to speak of the Lwów-Warsaw school of ethical thinking.