On the other hand, in a society whose communication component is becoming more prominent day by day, both as a reality and as an issue, it is clear that language assumes a new importance.

Scientific knowledge is a kind of discourse.

What is required of a working hypothesis is a fine capacity for discrimination.

And today more than ever, knowing about that society involves first of all choosing what approach the inquiry will take, and that necessarily means choosing how society can answer.

If we wish to discuss knowledge in the most highly developed contemporary society, we must answer the preliminary question of what methodological representation to apply to that society.

Knowledge is and will be produced in order to be sold, it is and will be consumed in order to be valorised in a new production: in both cases, the goal is exchange.