In his last seminar, held in Zähringen in 1973, Heidegger emphasizes the importance of Husserl's concept of categorial intuition for his own approach to the Seinsfrage. Although he denies that there is actually a Seinsfrage for Husserl, he adds that Husserl nevertheless "touches upon, grazes ever so lightly, the question of Being in the sixth chapter of the Sixth Logical Investigation with the notion of categorial intuition."1 Likewise, in "My Way to Phenomenology"2 he claims that when he started to practice phenomenological seeing, teaching and studying at Husserl's side in Freiburg, his interest was drawn again to Logical Investigations. This work had played a major role in the young Heidegger's philosophical development, but what captured his interest this time was mainly the Sixth Investigation of the First Edition. "The difference between sensuous and categorial intuitions, worked out in that Investigation, revealed to me its importance for the determination of the "manifold meaning of Being'" (MWP, 78). According to Heidegger, this renewed focus on LI took place as he was experimenting with a new understanding of Aristotle in seminars that were held from the summer semester 1921 through the winter semester 1922–23. This was exactly the period in which Heidegger started to contemplate the ideas that were to emerge as BT.
Øverenget, E. (1998). Categorial intuition, in Seeing the self, Dordrecht, Kluwer, pp. 34-71.
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