This essay introduces a tension between the public Wittgenstein’s optimism about knowledge of other minds and the private Wittgenstein’s pessimism about understanding others. There are three related reasons which render the tension unproblematic. First, the barriers he sought to destroy were metaphysical ones, whereas those he struggled to overcome were psychological. Second, Wittgenstein’s official view is chiefly about knowledge while the unofficial one is about understanding. Last, Wittgenstein’s official remarks on understanding themselves fall into two distinct categories that don’t match the focus of his unofficial ones. One is comprised of those remarks in the Investigations that challenge the thought that understanding is an inner m...