Historiography cannot, by itself, answer the question about the criterion for pedagogical authenticity. So much is obvious in the construction of the historical account, which must assume some principle of selection in order to produce a coherent narrative. That principle of selection will be a judgment either of correctness or of "importance." The former begs the question; the latter is either a concealed judgment of correctness or the reduction of philosophy to popularity. In Aristotle, the principle of selection is an otherwise established judgment of correctness. In much academic historiography, the principle often seems to be popularity. Neither provides an answer to the question about legitimate authority in philosophy.

Authority and persuasion in philosophy (1985)