Abstract
The aim of this paper is to analyse some questions proposed by the debate on the issue of modernity and post-modernity in the context of the philosophy of Leonardo Coimbra, from the reflection on these issues made by Jürgen Habermas in the work The Philosophical Discourse of Modernity. Thus, the critique to modern reason, the reflection on the metaphysics, the issues about the relationship between reason and faith, the religious phenomenon, the process of secularization, are our starting point for the questioning and the philosophical understanding that postmodernity makes of these problems The inauguration of this new rationality allows a new questioning about the reason and the world, manifesting the sublime character of its nature, allowing a new reflection, a critique of self-sufficient and self-reflexive reason and recovering another discursive and cooperative form of reason.