In this conversation about his philosophical work, Alain Badiou covers a wide range of topics. The four prerequisites of philosophy - historical upheavals in the understanding of politics, love, art, and science - are introduced at the beginning and structure the discussion. This leads, among other things, to his current major project "The Immanence of Truths": "The Immanence of Truths" forms the third volume of the work that began with "Being and Event" and "Logics of Worlds." The author's "Brief Introduction to the Philosophy of Alain Badiou" at the end of the book is seen as a complement and a renewed opportunity to systematically engage with a rich body of thought.