Opinion is a judgement of evaluation, ranging from the most instinctive to the most rational, that determines the value of a state of the world for a particular individual. As such, it lends itself to the psychologizing reading of analytical philosophy, methodological individualism and common sense. Yet, even though opinion is strongly linked to individual subjectivity, it is unrelated to the sincere and unconditional expression of a mental state. Opinion is an intentional relation that, like other similar relations, meets the conditions of adjustment making it possible to judge publicly whether it is correct or incorrect, appropriate or inappropriate. Unfortunately, dual conceptualizations of public opinion tend to replace the dynamic of adjustment between individual judgements and public reason by automatic incompatibility. Relational tension generated by the combination in a single concept of subjective and private "opinion" with objective and common "public", also tends to be masked. This tension, inherent in the concept of public opinion, is replaced by the univocal consecration of one of its components, which puts it in the uncomfortable position of a pleonasm or an oxymoron.