386–429 · Augustine of Hippo, Letters 93.4
Not every one who is indulgent is a friend; nor is every one an enemy who smites. Better are the wounds of a friend than the proffered kisses of an enemy. It is better with severity to love, than with gentleness to deceive. More good is done by taking away food from one who is hungry, if, through freedom from care as to his food, he is forgetful of righteousness, than by providing bread for one who is hungry, in order that, being thereby bribed, he may consent to unrighteousness. He who binds the man who is in a phrenzy, and he who stirs up the man who is in a lethargy, are alike vexatious to both, and are in both cases alike prompted by love for the patient.