Abstract

We reflect on Raimo Tuomela’s philosophy of social action and group action on the basis of our collaboration in his research group over the years. We will give a brief introduction to Tuomela’s career, his research endeavours, and the development of the field of collective intentionality and social ontology in which he was one of the central figures. We will focus on the development of three central themes in his research: we-intentions, we-reasoning, and collective responsibility.