"Deleuze's most basic philosophical instinct is against anthropomorphism: we should not assume that the universe can be grasped with the concepts of our everyday common sense, which presupposes a stable world of persons and objects capable of being hierarchically ordered and subject to natural laws. The task of philosophy is to invent new concepts that answer to exteriority, not to rely on the ones we already have, those of interiority. Moreover, the relations between interior and exterior are not symmetrical: from the inside, the exterior appears as the fugitive limit of a primarily epistemological problematic; but from the outside, an interior can be carved out by processes of folding or torsion. Starting from the concepts of interiority therefore it is impossible to think the outside, but not vice versa." (pag. 132)
"'The Geology of Morals' addresses the formation of what they now call strata, again modifying the sense of what an extensive system is. What Deleuze and Guattari really object to is the doctrine of form and matter, which essentially takes form as given, making the production of form an impossible topic. They propose to replace such hylomorphism with a matrix of four terms: content / expression and form / substance, none of which correspond to form and matter.
This terminology can seem arbitrary, but such complexity is quite normal outside philosophy. Organisms, for instance, are composed of proteins (form of content) that are themselves composed of chains of amino acids (substance of content); but both of these are (re)produced by a completely set of molecules, nucleic acids like DNA (forms of expression), which are themselves made from components, nucleotides (substance of expression), which are different in nature from the amino acid substance of content." (pag 136)
Postscript to the societies of control,1990 in L'Autre journal, no. 1.
Keywords: rhizome, metaphysics, empiricism, plane of immanence, deterritorialization.
 Protevi, John. 2006. A dictionary of Continental Philosophy. Yale University Press.