This article discusses the surprising paradox that for true subjectivity to be accomplished, we need the presence of others in order to become ourselves. This is well known from experiences with mother and child, for example, or with analyst and patient. Guillaumin explores what he calls the necessary, solipsistic paradox of the subject, noting that it is only in the experience of existing and thinking in his or her own unique body that a person—whether patient, analyst. or indeed, anyone—can find the self, encounter the unconscious, and confront his or her representations of exterior reality, including representations of others. At the same time, in the midst of this solipsistic existence, the individual learns to appreciate the intimate otherness of others, thereby transcending the self.