On adopting the right perspective.
Everything that we experience or interrogate, we see and interrogate in a particular perspective. Because this is so, in the unprejudiced inspection of a factual situation we must not only open our eyes, but at the same time we have to know from which perspective I am seeing the object—whether the state of affairs is created by the perspective, whether the understanding corresponds to the object.
This does not mean that everything depends on ones standpoint. There is always a standpoint; but the question is whether a standpoint is genuine. It is not that I simply determine [the state of affairs], but the question is whether [I have adopted] a really appropriate standpoint. It must be decided whether the perspective in which I am questioning corresponds to the object itself.
Plato has defined the task—not methodically, but with immediate inspiration—through the preliminary investigation: we must be able to attain a point of view that makes it possible for there to be such a thing as being both familiar and unfamiliar with an object. A cognition in which an object that has been grasped is exchanged with another.