EN
Professor Barbara Skarga is one of the most prominent philosopher's from so called the Warsaw School of the History of Ideas. Yet her late books - especially 'Metaphysical Quintet' - rejects its style of thinking based on a search for paradoxes and relativism of the historical consciousness. Barbara Skarga openly formulates par excellence metaphysical questions concerning borders of cognition: time, finiteness, evil, e.g. sources of human experience. It does not mean the return to uncritical dogmatism or petrified discoursive figures and formulas. On the contrary, the looking for the original of thinking is a 'borderline labour' of the reason operating on the frontier of any possible logical space.