Leibniz’s Dissatisfaction with the Cogito

The so-called ‘Cogito’ – a philosophical device and a kind of self-experience – has been variously interpreted since Descartes’ own time with respect to both formal aspects and content, and with both Leibniz is apparently dissatisfied. We will consider the reasons for this dissatisfaction, Leibniz’s preferences as for possible reformulations and replacements (in particular his ‘multa-cogito principle’), as well as the role of these as regards Leibniz’s vision of the relationship between individuals and the world is concerned. We will conclude raising two questions, one concerning the I, the 'ego', and the other concerning the 'sum', inside the Leibnizian metaphysical setting.