How should we live? What should we trust in order to fulfil ourselves morally? These questions were addressed in Immanuel Kant's practical philosophy, whose initial stimulus is summarised in the reflection on morality, which must be guided by reason, and the role of its cultivation in educational practices. The central proposal will not be summarised solely in the term morality, but this will be a guiding thread that will guide us, starting with the proposed link between the concepts of Religion and Education. This attempt to reconstruct the path of these themes of practical philosophy, in Kant's view, aims to present the process of development in moral formation, as well as the indispensable contribution of religion and pedagogy. Thinking about the successive consequences of improving the species also allows us to talk about an ethical community. This will be treated as the result of permanent moral formation, the fruit of a process of constant improvement, represented by the union of people morally engaged in cultivating good relations.