Intersubjectivity in Sartre's Being and Nothingness

Sartre’s analysis of intersubjectivity in the third part of Being and Nothingness is guided by two main motives1. First of all, Sartre is simply expanding his ontological investigation of the essential structure of and relation between the for-itself (pour-soi) and the in-itself (en-soi). For as he points out, I need the Other in order fully to understand the structure of my own being, since the for-itself refers to the for-others (EN 267/303, 260/298); moreover, as he later adds, a treatment of the relation to the in-itself must necessarily include an analysis of the Other precisely because this relation is played out in the presence of the Other (EN 410/472). Secondly, Sartre wants to supply a concrete solution to the problem of solipsism (EN 289/329, 296/337). This problem was already preoccupying him in The Transcendence of the Ego, but at that time, Sartre argued that solipsism could be avoided by means of a non-egological theory of consciousness, since such a theory—which sees the transcendental field of consciousness as non-personal and the I as a product of reflection (TE 36/52-53, 63/80- 81)—would no longer confer a privileged status to the I vis-à-vis the Other (TE 85/104). In Being and Nothingness, however, Sartre concedes that this renunciation of the transcendental I has in fact been of no help in overcoming solipsism (EN 280/318). The problem remains and has to be solved. As he is quick to add, however, a proper solution will not involve any proof of the existence of Others; rather, it will be a question of revealing the foundation of our “pre-ontological” certainty with regard to the existence of the Other (EN..