Tertullian

“ You must know that in the eye of perfect, that is, Christian, modesty, (carnal) desire of one’s self (on the part of others) is not only not to be desired, but even execrated, by you: first, because the study of making personal grace (which we know to be naturally the inviter of lust) a mean of pleasing does not spring from a sound conscience: why therefore excite toward yourself that evil (passion) ? ”

“ He who acts securely, and not at the same time warily, possesses no safe and firm security; whereas he who is wary will be truly able to be secure. For His own servants, may the Lord by His mercy take care that to them it may be lawful even to presume on His goodness! But why are we a (source of) danger to our neighbour? why do we import concupiscence into our neighbour? ”

“ Chapter II.—Perfect Modesty Will Abstain from Whatever Tends to Sin, as Well as from Sin Itself. Difference Between Trust and Presumption. If Secure Ourselves, We Must Not Put Temptation in the Way of Others. We Must Love Our Neighbour as Ourself. ”