At first glance, in Valla’s thinking, his ‘poor’ conception of metaphysics seems to contrast with his appreciation of the ‘richness’ of rhetoric, as opposed to the indigence of dialectic. However, poverty can be understood in two senses: on the one hand, it designates a lack, even an insufficiency; on the other, it expresses the search for something simple, even essential. So, poverty, like nakedness (Séris 2021)1, is a concept with an opposite polarity. What is elementary can therefore be fundamental. Consequently, how can we understand, in Valla’s thought, the link between the ontological reduction of all transcendentals to the res and the opulence of rhetoric? To try to answer this question, this paper seeks to analyze the ambivalent nature of the opposition between poverty and wealth in order to reinterpret it in the opposition between simplicity and complexity. It is not certain that gain will be found on the side that we would expect to find it.