Baruch Spinoza

Baruch Spinoza appears not as a philosopher securely grounded in a community, but as an exemplary figure of displacement. The book makes his position as a double outcast philosophically decisive: thought can speak from the interstices of substantial communal identities, where neither inherited belonging nor a positive self-contained identity guarantees truth. Spinoza’s place between communities thus becomes a way to understand the empty function of the cogito, the limits of ethnic identity as a criterion of knowledge, and the contrast between his account of mind and body and Hegel’s account of subjectivity.

A Philosophical Position in the Interstices

The book links the emergence of the cogito to the disintegration or loss of substantial communal identities. In the interpretation developed through Kojin Karatani, the cogito cannot be treated as a positive, self-sufficient entity: “It cannot be spoken of positively; no sooner than it is, its function is lost.” It is instead a pure structural function, an empty place that can emerge only in the gaps between established communal systems. Spinoza is central to this account because, although he criticized the Cartesian cogito when it was treated as a positive ontological entity, he implicitly endorsed the position from which radical self-doubt is enunciated.

That distinction separates a claim about what the self is from an account of the position from which a subject speaks. The book describes Spinoza as endorsing the “position of the enunciated”: not a substantial inner self offered as a secure foundation, but a speaking position made possible in the interstices of social space. His philosophical importance therefore lies partly in how his displacement gives this structural position historical and communal force. The cogito’s emptiness is not an abstract puzzle detached from social life; its emergence is bound to the loss of identities that would otherwise appear whole and self-evident.

Double Exclusion and Universal Truth

Spinoza is described as the “philosopher as such” because he occupies the position of a double outcast, excluded even from the community of outcasts within Western civilization. The book makes this condition a paradigm for identifying a communal “out-of-joint” in other philosophers. Nietzsche, for example, is invoked as someone ashamed of the Germans and proud of his alleged Polish roots. The comparison does not make the philosophers’ histories identical; it directs attention to a displacement that unsettles the assumption that a thinker’s truth belongs naturally to a national or ethnic community.

From this perspective, ethnic roots and national identity are not categories of philosophical truth. The book frames reflection on those roots, in Kantian terms, as a private use of reason when it remains constrained by contingent dogmatic presuppositions. That judgment does not require shame or renunciation: particular identities can be loved and taken pride in, and returning home can warm the heart. The point is that such attachments are ultimately irrelevant to the proper space of universal truth. Spinoza’s position makes the distinction especially sharp because his thought is said to issue from neither a Jewish nor a Christian communal space.

Saint Paul offers a related formulation. He could retain pride in his particular identity as both a Jew and a Roman citizen while affirming that, in the space of Christian absolute truth, “there is neither Jew nor Greek.” The struggle at stake is therefore not simply one substantial group opposing another. It follows a different logic: an antagonism that cuts diagonally across particular groups rather than arranging them as self-identical communities confronting one another. Spinoza’s outcast position helps disclose that alternative structure of conflict and universality.

God, Knowledge, and the Limits of Positive Concepts

The book also takes Spinoza’s example of God to show how a seemingly positive concept can conceal an absence of knowledge. When conceived as a mighty person, God embodies ignorance of true causality. The concept appears to name a definite being, but in this use its force is negative: it marks what its users do not understand about how causes operate. This example belongs to a broader discussion of master-signifiers, which can appear to fill a lack in signification even as they register that lack.

Other examples clarify the same operation without being equated with Spinoza’s theology. Phlogiston is presented as a pseudo-concept that betrayed ignorance of how light travels; Marx’s “Asiatic mode of production” functions as a negative container for modes of production that do not fit his standard categorization; and “postindustrial society” can likewise seem to designate positive content while revealing the limits of what is known. Spinoza’s example therefore matters not as a simple rejection of the word God, but as an account of how a concept can acquire apparent substance by covering over a gap in explanation.

Substance, Mind and Body, and Parallax

Spinoza’s account of mind and body supplies another central contrast. The book says that he formulates the highest parallax: substance is One, while mind and body are two modes through which the same substance is perceived. The difference between them does not divide reality into two independent substances; each mode presents the same underlying network from a different perspective. The relation is symmetrical: neither mode provides a point of contact or passage into the other, and each reveals the same substance differently.

Hegel’s account differs at precisely this point. Its two levels are radically asymmetric: one appears able to stand on its own, while the other represents the shift or gap between them. The book’s example is class struggle, in which the proletariat stands not only as one side of the conflict but for the struggle as such. This comparison marks a passage from Spinoza’s One as the neutral medium containing its modes toward the One’s inherent gap, identified with the passage from Substance to Subject. Spinoza’s philosophy is thus both a powerful account of perspectival difference within unity and the point of departure for specifying what changes when substance is understood through the subject.