The truth, indeed, is not to be found in a philosophy which keeps the mean between contrary errors by its mediocrity and by falling below them, being built up by borrowing from both, balancing one against the other and mingling them by arbitrary choices made without the light of a guiding principle (eclecticism): it must be sought in a philosophy which keeps the mean between contrary errors by its superiority, dominating both, so that they appear as fragments fallen and severed from its unity.
Jacques Maritain, An Introduction to Philosophy. E. I. Watkins, tr. Sheed and Ward (New York: 1930) p. 270.