In this project, I am going to work on two (related) topics. The first concerns Kant’s Theory of Self-consciousness and the questions: What is the relation between self-consciousness and abilities? Is self-consciousness the name of a set of abilities or something else (that leads to abilities)? While I worked on these questions in the past with respect to the main theses in the Critique of Pure Reason, I now want to focus on a special topic that also leads to Kant’s Opus Postumum, namely the topic of Self-positing and Self-determining. I will ask what kind of abilities are meant with these concepts and what kind of theory Kant presents with respect to them. The other topic concerns the question of the relation of concepts and ideas and abilities in Kant and Hegel. In what sense are concepts and ideas abilities, products of abilities and the source of (further) abilities and what does this mean for what concepts and ideas really are? The question I am going to start with here is: what role does empirical intuition play for our concepts according to Kant on the one and Hegel on the other hand?