Formerly, I viewed human common sense only from the standpoint of my own; now I put myself into the position of another's reason outside of myself, and observe my judgments, together with their most secret causes, from the point of view of others. It is true that the comparison of both observations results in pronounced parallaxes, but it is the only means of preventing the optical delusion, and of putting the concept of the power of knowledge in human nature into its true place.

iDreams of a Visionary, Explained by Dreams of Metaphysics (1766)j