"Either we are part of that reality or it is illusory to think we know it. Interviewer: Yet, if I could not distinguish myself from external reality, in the same way, I could not know it. Carlo Sini: Fair objection. In the sense that we are part of reality while distinguishing ourselves from it. We are part of the truth, but we are not the truth. Interviewer: A nice paradox. So what are we? Carlo Sini: We are in the difference of knowledge, or rather we are in what I call “being in error.” Truth and error are, in a way, two sides of the same coin."