 One could be a constructivist about some diseases, and a naturalist about others. For example, one could be a naturalist about bodily disease but a constructivist about psychiatry. Thomas Szasz (1960, 1973, 1987), for instance, is usually read as a constructivist who denies that mental illness exists. But in fact Szasz has a very strict objectivist concept of disease as no more than damage to bodily structures.