Abstract
In this paper, I list various kinds of ‘plurality’ in philosophical investigations. By
plurality, I mean a plurality of methodological criteria which we apply to philosophical phenomena and which are very often incompatible with each other. Any philosophical phenomenon can be approached from different methodological viewpoints and result in utterly different ontological and ideological commitments. In other words, I assume that one philosophical problem can have different solutions which depend on different methodological and theoretical presuppositions. Instead of considering this feature of philosophical theories as a problem, I take this plurality as a natural meta-philosophical result. As an example, I consider impossible phenomena and ways of treating them systematically.