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PARTICIPANT: The presupposition of speculative thought is the identity of being and thinking.
HEIDEGGER: Where does the speculative belong for Hegel?
PARTICIPANT: The speculative is a moment of the logical.
HEIDEGGER: What is a moment?
PARTICIPANT: Moment comes from movere, movimentum [to set in motion, movement].
HEIDEGGER: The phase [der Moment] depends on "the moment" ["das Moment"]. When Hegel says the speculative is a moment, the phase is not meant thereby, but rather the moment. The moment is {185} a moving something which has a share in the movement of thinking, and which gives an impetus. The moment becomes the impetus, and the impetus itself is the instant; it happens in a phase [in einem Moment]. Thus, the moment becomes the phase. What is the first moment of the logical?
PARTICIPANT: The abstract or intelligible.
HEIDEGGER: And the second moment?
PARTICIPANT: The dialectical.
HEIDEGGER: It is noteworthy that Hegel understands the dialectical as the second and not as the third moment. And what is the third moment?
PARTICIPANT: The speculative.
HEIDEGGER: In what connection does Hegel call the dialectical the second and not the third moment of the logical? When he speaks, at the end of the Logic, of the identity of matter and method, one would indeed think that the dialectical is the third moment. Hegel also calls the dialectical the negative-rational. What does the rational mean for Hegel? We need all this information for our analysis of Heraclitus, even though Hegel does not speak of Heraclitus in these pages.
PARTICIPANT: Spoken from the Phenomenology of Mind, reason is the sublation of the separation of subject and object.
HEIDEGGER: Where does Hegel's terminology come from?
PARTICIPANT: From Kant.
HEIDEGGER: How does Hegel characterize Kant's philosophy? {186}
PARTICIPANT: As reflexive philosophy.
HEIDEGGER: And that means?
PARTICIPANT: As the division of two phases.
HEIDEGGER: Which phase? What does reason mean in Kant?
PARTICIPANT: For him, reason is the thinking of the ideas in distinction to understanding as the thinking of the categories. The ideas are regulative principles, in which reason thinks totality.
HEIDEGGER: Reason in Kant is thus not referred immediately to appearances but only to the rules and fundamental principles of understanding. The fundamental function of reason consists in thinking the highest unity. When Hegel says the dialectical is the negative-rational, he