The only meaning of priority, is the priority of consensus" Bruno de Finetti, 1952. The analysis presented in this article is focused on social welfare as the purpose of social unity. This analysis is basically based on an experimental research that the Europe's council has done in some European countries (and also in a multinational institute and a high school). This experiment was based on inviting citizens (employees and college student, etc. depending on the study case) to think about 3 questions based on the mutual action logic: "what is welfare in your opinion?", "what is the meaning of not having welfare?", "how much are you ready to help welfare?". The main difference between this experiment and other experiments is not the type of questions, but it is more about the point that these questions are created for "groups of citizens". In fact, this dynamism –that has shown relations between people's life conditions and social, economic and inherent evolutions of their environment– has made "objectifying" to individual comprehension and attaining to consensus about something that is essentials for everybody, more possible. Even if welfare, according to its nature, is considered individually, when it gets presented will be the purpose of society. So because of this, asking about public welfare would be essential for managing collective life.
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