Mental illness, of course, is not literally a 'thing' - or physical object - and hence it can 'exist' only in the same sort of way in which other theoretical concepts exist.

There is no such thing as mental illness, hence also no such thing as psychotherapy.

The cruelty intrinsic to the workhouse system was excused by the need to discourage idleness, much as the malice intrinsic to the mental hospital system has been excused by the need to provide treatment.

No further evidence is needed to show that 'mental illness' is not the name of a biological condition whose nature awaits to be elucidated, but is the name of a concept whose purpose is to obscure the obvious.

A phenomenon that might seem only backwards or silly when expressed at a social level becomes madness at the individual level.

Psychoanalysis is that mental illness for which it regards itself as therapy.