Problem: The importance of diversity: The questions is simple: "how many women and men from outside your "own circle" or your "culture" or "your own universe of reference" have you met during the past few months? How many of them have exchanged views, debated, or even worked at a common social, cultural, or political project? How many women and men have you met in the last month, or two or six months, with whom you have experienced cultural, religious, and social diversity, been positively questioned, and been compelled to reconsider your way of thinking, your certainties/uncertainties, and your habits as well as some of your prejudgments and prejudices? It is easy to think of oneself as "open-minded" in a universe peopled with always the same citizens and friends, and where openness is thought rather actually experienced.