"Our warped natures, the devils who tempt us, and all contemporary propaganda for lust, combine to make us feel that the desires we are resisting are so 'natural', so 'healthy', and so reasonable, that it is almost perverse and abnormal to resist them. Poster after poster, film after film, novel after novel, associate the idea of sexual indulgence with the ideas of health, normality, youth, frankness, and good humour. Now this association is a lie. Like all powerful lies, it is based on a truth-- the truth, acknowledged above, that sex in itself (apart from the excesses and obsessions that have grown round it) is 'normal' and 'healthy', and all the rest of it. The lie consists in the suggestion that any sexual act to which you are tempted at the moment is also healthy and normal. Now this, on any conceivable view, and quite apart from Christianity, must be nonsense. Surrender to all our desires obviously leads to impotence, disease, jealousies, lies, concealment, and everything that is the reverse of health, good humour, and frankness."