In this essay, a comparison is proposed between Vygotsky and Lacan. According to Vygotsky, the human subject is nothing but the internalization of external culture and language. In this sense, the ego is constitutively other than itself. The problem of Lacan, on the contrary, is how to allow the human to become something unique and unspeakable.
Keywords: Otherness; Ego; Unspeakable.