The habit of communicating events in most of our conversations causes the habit of conceiving ourselves as messengers.
The messenger is in no way responsible for what he announces and he is privileged in mastering the power of words over others. Also, he shows more accuracy of a spoken discourse than the author of the message, since he does not confront the difficulty of judging the words he utters.
Seemingly, the norms of objectivity are closer to the rules of transmitting a message than to those that are appropriated to a discourse that is permanently doubled by the effort of thinking its words and, for this reason, hardly to be detached of any trace of subjectivity.
Moreover, the objectivity would assume the lack of responsibility. In the context of knowledge, the lack of responsibility should be understood in a literal way, namely, as a lack of answers apart from what the objective discourse itself communicates.
The possibility of giving such answers is limited as long as the matters treated by an objective discourse are conceived as outer events that can be known as any other matters to be known as objects of a message.
When philosophy is divided in different areas of competence, the philosopher himself is divided in order to be free from him as a whole for speaking only as a messenger of himself and of the reality he is supposed to describe. He does not speak as the author of a discourse, because the effort of thinking your own words cannot be restrained to some definite areas of competence. The effort always means that are exhausted all possible means.