English summary: Why does the state not only need the market economy, but the market economy also the state? Why do laws often impact us differently than the lawmaker expects? How does prosperity originate? In 12 theses, Kaspar Villiger gives a summary of his 46 years as a businessman, a member of the administrative board of global groups, minister of defence and finance as well as president of the Swiss confederation, searching for answers to these and other questions. He questions why the economy should also let itself be guided by ethical criteria and how federalism should be structured so...