I have had one chief, basic, most important piece of luck in my life. I had extraordinary parents, to whom I owe a very great deal. My mother was passionate about geography — the analysis of tectonic plates and their dynamics. Beyond that, she specialized in international relations and took a keen interest in the life and work of the Polish diaspora around the world. My father was passionate about physics and mathematics, though his actual field was nuclear chemistry, and he conducted research at nuclear reactors. A few years ago — counting from the point on the timeline where I place this — he not only defended his doctorate but published his own patent for an effective method of neutralizing radioactive waste. That work was recognized, and it brought him an offer to work in West Berlin, at the Hahn-Meitner Institute, on the team of Professors Lutze and Lookscheiter. Later he also worked in Cologne, in West Germany. In Poland, during his student years, which fell in the Stalinist period, he was held in prison for taking part in and helping organize a student protest. It was a deep trauma for him, one he would not speak of even years later. That was how he came to be regarded as a veteran of that struggle. To my parents, to their wisdom and their devotion, I owe what may be the most important thing in a life: a very happy and secure childhood, which I was allowed to live as a magnificent adventure. It was not a carefree or stress-free childhood, but it was full of joy and play — woven together with lessons in responsibility and a very intense education. I remember my first conversations with my father under the star-filled sky of Berlin, in his quiet neighborhood of Wannsee. We talked about the stars, about the planets, about the cosmos and our place in its vastness. We talked about its harmony, its power, and the universal language by which the cosmos understands and by which it speaks — mathematics. Those conversations fascinated me. They were full of mystery, strangeness, and variety.