There is another way in which true and false philosophers indirectly witness to the truth and advance its cause. Their intellectual efforts identify the crux of the problem, that is, the awkward knot which they have vainly tried to untie, and which caused many of them, despite their utmost endeavours, to fall into error. Knowing where the problem lies represents an important stage on the way to the attainment of truth, which cannot be assailed in its hidden stronghold unless the fortress defending it has been inspected from all sides.
Bl. Antonio Rosmini, About the Author's Studies, Murphy, tr., Rosmini House (Durham:2004) p. 106. (This is the preface to Rosmini's Introduction to Philosophy.)
