Gregory the Dialogist

Answer, I pray you, without strife. For neither do heretics try to attain truth by their investigations, but to appear to be the winners; and whereas they desire to shew for wise without, they are bound within in their foolishness with the chains of their own pride; hence it comes to pass that they look out for contests of rivalry, and concerning God, Who is our Peace, they know not how to speak with peaceableness, and by the article of peace they become contrivers of strife. …

Morals on the Book of Job, Book VIII ↗

Thomas Aquinas

He continues lest anyone think that he says this because he is afraid to argue with them because he could not be confident in the truth of his opinion and the justice of his case, "Despite this, finish what you began to say," so that the truth can come to light from mutual debate. So he goes on, "Lend an ear," i.e. listen, "and see," i.e. consider, "if I am lying." For the first impediment to finding the truth through debate is when someone does not want to hear what his adversary is saying. …

Commentary on Job ↗