From The Screwtape Letters—a fictional work written from a senior demon’s perspective, advising a junior tempter.

Instil into him an overweening asceticism and then, when you have separated his sexuality from all that might human-is it, weigh in on him with it in some much more brutal and cynical form. If, on the other hand, he is an emotional, gullible man, feed him on minor poets and fifth-rate novelists of the old school until you have made him believe that ‘Love’ is both irresistible and somehow intrinsically meritorious. This belief is not much help, I grant you, in producing casual unchastity; but it is an incomparable recipe for prolonged, ‘noble’, romantic, tragic adulteries, ending, if all goes well, in murders and suicides.

The Screwtape Letters
C. S. Lewis