As in a Heraclitean formula, the oblivion plays the same important role in knowledge as awareness.
For knowing truths and believing in their force as sources of intellectual illumination, one has to forget the framework of all the steps he made to those truths. Such a framework is shaded by uncertainties, idiosyncrasies, and animosity to other searchers for the truth.
The darkness of the Platonic cave is not forgotten because of the light of the Good, but rather because of the impossibility of the released prisoner to remain aware of what preceded his access to the light. The Good could not be comprehended by the darkness of the previous inquiries.
The shortest path to oblivion is to deny yourself altogether as the agent of knowledge. The confidence in an objective point of view is partly caused by such assumed oblivion of yourself.
However, in order to keep awareness as an equal important value in knowledge, it should be spread to the knower, too. Thus, the truths that do not permit to recognize the man who reached them as a man can be contested for the lack of awareness, in spite of their objectivity. The most of scientific truths have such fate.