1. On several occasions, Husserl has called attention to the lecture-courseGrundprobleme der Phänomenologiefrom 1910/11 (now in Hua XIII/111–194), as the place where intersubjectivity was assigned a decisive role for the first time (Hua XVII/250, V/150, XIII/245, VIII/433, XIV/307). Although his reflections inIdeen I(from 1913) appear strictly egological, Husserl was already at that time aware of the significance of intersubjectivity, and he later wrote, that he originally had planned that his presentation inIdeen Iwere to be complemented by the reflections on intersubjectivity to be found inIdeen II. However, these reflections were only published posthumously (Hua V/150).
2. This study is based on research undertaken at the Husserl-Archives in Louvain. I am grateful to Prof. S. Ijsseling for the permission to consult and quote from Husserl's unpublished manuscripts.
3. Cf. K.O. Apel,Transformation der Philosophie I-II(Frankfurt a.M.: Suhrkamp, 1973), pp. I/60, II/315; J. Habermas,Der philosophische Diskurs der Moderne(Frankfurt a.M.: Suhrkamp, 1985), p. 178.
4. This formulation, which is from Husserl's London-lectures in 1922, can be found in K. Schuhmann,Husserls Staatsphilosophie(Freiburg: Karl Alber, 1988), p. 56.
5. Cf. H. Zeltner, “Das Ich und die Anderen. Husserls Beitrag zur Grundlegung der Sozialphilosophie”Zeitschrift für philosophische Forschung13 (1959), pp. 309–10; M. Theunissen,Der Andere(Berlin; Walter de Gruyter, 1977), § 19–28; A. Schütz, “Das Problem der transzendentalen Intersubjektivität bei Husserl”Philosophische Rundschau5 (1957), p. 107; p. Ricoeur, “Phenomenology and Hermeneutics” in Thompson (ed.),Hermeneutics & the Human Sciences(Cambridge: Cambridge University Press, 1981), pp. 124–25; U. Rohr-Dietschi,Zur Genese des Selbstbewuβtseins(Berlin: Walter de Gruyter, 1974), pp. 144–150. I will not go into an analysis of Husserl's concept of constitution in this article, but simply refer to my presentations in D. Zahavi,Intentionalität und Konstitution—Eine Einführung in Husserls Logische Untersuchungen(Copenhagen: Museum Tusculanum Press, 1992); D. Zahavi: “Réduction et constitution dans la phénoménologie du dernier Husserl”PhilosophiquesXX/2 (1993), pp. 363–381 or D. Zahavi: “Beyond Realism and Idealism. Husserl's Late Concept of Constitution”Danish Yearbook of Philosophy29 (1994), pp. 44–62; and to the detailed analysis of the constitution of the Other in D. Zahavi:Husserl und die transzendentale Intersubjektivität—Eine Antwort auf die sprachpragmatische Kritik(Dordrecht: Kluwer Academic Publishers, 1996).