Cartesian Rationalism enters the depth-psychology corpus not as a philosophical position to be defended but as a historical formation to be anatomized, critiqued, and in some cases mourned. The corpus situates Descartes at the inaugural moment of a fateful epistemological dispensation — one that severed reason from feeling, subject from world, and mind from body — and traces the consequences of that severance across neuroscience, alchemy, addiction studies, and the phenomenology of creativity. Von Franz reads Descartes’s own dreams as the unconscious indicting the very rationalist program he would go on to construct, arguing that the dreams sketch ‘the actual problem of the man of our time’ at the dawn of eighteenth-century rationalism. Hillman implicates Cartesian-Newtonian mechanism directly in the imaginative impoverishment of Enlightenment thought, charging that it expelled ‘air’ — the element of invisible imagination — from its world. McGilchrist maps Cartesian rationalism onto left-hemisphere dominance, treating it as a civilizational pathology characterized by excessive control and misplaced certainty. Sharpe and Ure, by contrast, complicate the caricature, arguing that readings through purely epistemological or post-structuralist lenses render Descartes’s practice-oriented, spiritually-inflected philosophy unrecognizable. The tension between these positions — Descartes as villain of dissociation versus Descartes as misread spiritual practitioner — constitutes the generative fault-line running through the corpus’s engagement with Cartesian Rationalism.
they already sketch, in a nutshell, the actual problem of the man of our time, the heir to that epoch of eighteenth-century rationalism, at the dawn of which Descartes stands
Von Franz argues that Descartes’s own dreams prefigure the psychological crisis engendered by the rationalist epoch he inaugurated, pointing toward individuation as the unconscious’s prescribed remedy.
, Dreams: A Study of the Dreams of Jung, Descartes, Socrates, and Other Historical Figures, 1998thesis
The invisible imagination, air, had been excluded from participating in the Cartesian-Newtonian world. Hence Enlightenment rationalism, mechanism, and turgid sentimentalism: it had no air in it.
Hillman charges Cartesian-Newtonian mechanism with the systematic exclusion of imagination from the world-picture, producing a rationalism that is at once mechanistic and affectively impoverished.
, Alchemical Psychology, 2010thesis
why does the will need to be exhorted in this text of ‘system-building rationalism’? Because, as we saw (ii), for Descartes as for the ancients, our judgments are shaped by passions and habits which cannot be lastingly moved by argument alone.
Sharpe and Ure contest the reductive reading of Descartes as pure system-building rationalist, revealing that the Meditations acknowledge the irreducible role of passion and habit in reshaping cognition.
, Philosophy as a Way of Life: History, Dimensions, Directions, 2021thesis
Descartes tends to be looked at through epistemological lenses, or else, following the post-structuralists, as the founder of a new subjectivist ‘conception of Being’… such approaches are tone deaf to the literary and philosophical genres in which Descartes conveyed his ‘first philosophy’.
The authors argue that dominant epistemological and post-structuralist readings of Descartes systematically obscure the practice-oriented, genre-specific character of his philosophical project.
, Philosophy as a Way of Life: History, Dimensions, Directions, 2021supporting
a key element in schizophrenia is not irrationality, but an excessive and misplaced rationalism.
McGilchrist draws a structural parallel between schizophrenic cognition and the excess of Cartesian-style rationalism, linking left-hemisphere dominance to a pathological overextension of systematic reason.
, The Master and His Emissary: The Divided Brain and the Making of the Western World, 2009supporting
the Cartesian representation of individuation precisely identifies the individual with its geometrical limits characterized by its figure… there is a non-Cartesian epistemology, not in the sense of determinism or indeterminism, but in the sense of what concerns the mode of action of one individual on another.
Simondon identifies the Cartesian model of individuation — defined by geometric closure and contact-only causality — as the limiting postulate that probabilistic and field-based physics is compelled to supersede.
, Individuation in Light of Notions of Form and Information, 2020supporting
a new way of doing philosophy: one that respected no authorities beyond the thinker’s own cognitive powers, that dispensed, in particular, with the reading of canonical texts.
The editorial apparatus to the Meditations identifies Descartes’s radical cognitive self-sufficiency — reason answerable to no authority but itself — as the defining innovation perceived by his contemporaries.
, Meditations on First Philosophy, 2008supporting
Body connotes life, a living organism, and is richer in meaning than physical in the Cartesian sense. Drawing on this richness can help us to refine the terms of the explanatory gap.
Thompson contrasts the thin, purely extensional Cartesian sense of ‘physical’ with the phenomenologically richer concept of ‘body’ as living organism, using that contrast to reframe the hard problem of consciousness.
, Mind in Life: Biology, Phenomenology, and the Sciences of Mind, 2007supporting
Chomsky’s major references, in the Cartesian Linguistics, are to the Logic and General and Reasoned Grammar of Port-Royal, works that Rousseau knew well and that were held in high esteem by him.
Derrida notes the lineage of Cartesian linguistic rationalism through Port-Royal grammar, situating Chomsky’s generative project within a broader Cartesian inheritance that also shaped Rousseau.
, Margins of Philosophy, 1982aside
they are, as a rule, much more convincing than results established by mere logic ever are.
James implicitly challenges Cartesian rationalism by asserting that felt religious certainty possesses a conviction that logical demonstration characteristically fails to produce.
, The Varieties of Religious Experience Amazon, 1902aside