point d'heresie

[Yves Winter <winter@xxxxxxxxxxxxx>]

Does anyone know where in _les mots et les choses_ Foucault develops or
invokes the concept of 'point d'heresie' or 'occasion d'heresie'? I know he
used this term in _les mots et les choses_ but then pretty much left it
aside. 

thanks, yves