But why doth “truth generate hatred,” and the man of Thine, preaching the truth, become an enemy to them? whereas a happy life is loved, which is nothing else but joying in the truth; unless that truth is in that kind loved, that they who love anything else would gladly have that which they love to be the truth: and because they would not be deceived, would not be convinced that they are so? Therefore do they hate the truth for that thing’s sake which they loved instead of the truth. They love truth when she enlightens, they hate her when she reproves. For since they would not be deceived, and would deceive, they love her when she discovers herself unto them, and hate her when she discovers them. Whence she shall so repay them, that they who would not be made manifest by her, she both against their will makes manifest, and herself becometh not manifest unto them. Thus, thus, yea thus doth the mind of man, thus blind and sick, foul and ill-favoured, wish to be hidden, but that aught should be hidden from it, it wills not. But the contrary is requited it, that itself should not be hidden from the Truth; but the Truth is hid from it. Yet even thus miserable, it had rather joy in truths than in falsehoods. Happy then will it be, when, no distraction interposing, it shall joy in that only Truth, by Whom all things are true.
–St. Augustine, The Confessions, Book 10.23.34