Politics in democracies is characterized by the fact that it takes the diversity of social groups into account in its decisions. As Max Weber already pointed out in his famous speech on “Politics as a Profession,” the politician should, in addition to “passion” and “a sense of proportion,” above all have a “sense of responsibility.” It considers the consequences of his actions for all those affected and justifies them to his voters. The diversity of interests at stake is a challenge for democratic politics. With its legislation, it determines how people and diverse groups in a society live together. To ensure that this diversity is actually represented, politicians have not only formally predetermined paths at their disposal, but also informal ones. By taking these into account, the formation of political will always has a transdisciplinary component (cf. the horizontal approach to transdisciplinarity in the contributions by Schüz and Steiner in this volume).