I do not mean that in matters of feeling "authority" is to override "private judgment." Our last resort with respect to things of the mind is, as I have said, that of careful self-inspection.

And the progress of psychology and the correction of illusion proceed by means of an ever-improving exercise of the introspective faculty.

Yet such individual inspection can at least be _guided_ by the results of others' similar inspection, and should be so guided as soon as a general consensus in matters of internal experience is fairly made out.

In point of fact, the preceding discussion of illusions of introspection has plainly rested on the sufficiently verified assumption that the calmest and most efficient kind of introspection, in bringing to light what is permanent as compared with what is variable in the individual cognition, points in the direction of a common body of introspected fact..