Ignorance is constantly, so to speak, accompanied by rashness, and leads men on to attach great importance to their wretched fancies; and thus those who are the victims of this malady entertain a great idea of themselves, and imagine themselves possessed of such knowledge as no man can gainsay. For they forget, as it seems, Solomon, who says, "Be not wise in your own eyes," that is, according to your own single judgment: and again, that "wisdom not put to the proof goes astray." For we do not necessarily possess true opinions upon every individual doctrine that we hold, but often perhaps abandoning the right path, we err, and fall into that which is not fitting. But I think it right, that exercising an impartial and unprejudiced judgment, and not rendered rash by passion, we should love the truth, and eagerly pursue it.
St. Cyril of Alexandria, Commentary on Luke, Sermon XXXVI