Aside from that, Peirce employed a great part of his efforts to philosophize about fertility – “uberty” in his own words – and creativity in reasoning. The conceptual cornerstone of such concerns is the Peircean notion of abduction. Accordingly, the development of his (not all of them equally finished) systems of logical graphs deals not only with necessary forms of reasoning, but above all else with the inferential steps leading from the premisses to the conclusion. In this sense, Peirce’s work can be a source of more inspiration about creativity and logic.