“Equally serious is the complaint that psychoanalysis as a medical practice is a form of oppressive social control, labelling individuals and forcing them to conform to arbitrary definitions of ‘normality’. This charge is in fact more usually aimed against psychiatric medicine as a whole: as far as [Sigmund] Freud’s own views on ‘normality’ are concerned, the accusation is largely misdirected. Freud’s work showed, scandalously, just how ‘plastic’ and variable in its choice of objects libido really is, how so-called sexual perversions form part of what passes as normal sexuality, and how heterosexuality is by no means a natural or self-evident fact. It is true that Freudian psychoanalysis does usually work with some concept of a sexual ‘norm’; but this is in no sense given by Nature.”

— Terry Eagleton, “Psychoanalysis,” Literary Theory: An Introduction