Abstract
This work is an attempt to outline basic political aspects of the ethics and the ontology developed by the philosopher Alain Badiou. It seeks to present the concepts of being, event, subject and truth, in addition to other similar, drawing parallels with central authors of contemporary philosophical debate. Initially exposing Badiou’s original theoretical reasons, we try to build a conceptual reconstruction that culminates in confrontation with currently hegemonic political-philosophical perspectives. At last, it`s discussed in what practical senses Badiou maintains the need for a renewed understanding of universalistic politics