In order to reach this matter, the French philosopher proposes a hermeneutic historical comprehension, a longer way to state the problem. It is possible to state the intensive knowledge is based upon interests, so it is a matter of manipulation, domination and communication distortion. The duty of Philosophy is to denounce them once they are a source for producing subject illusions. Ricoeur is compromised with a project of man's emancipating due to a process of criticism, though he also warns about the necessity of assuming our historical condition. There is no such radical critics able to entirely break the attribute basis which the historical condition is based upon.
Ideology is linked to wrong comprehension of reality and interests.
Ideology transforms the knowledge into a system of beliefs, so, a good scientific investigation develops due to rational system, where the main concern is the truth. However, an interest moved researcher is not able to separate reason from beliefs on his scientific investigation. The criticism involved in ideology points to an interest in emancipation, i.e., to establish a communication with no fetter and limit though a process of consensus constitution. Consensus is not previously established. Conversely the communication is interrupted at a starting point level.