 Towards the end of Morning Hours Mendelssohn introduces a further proof for God’s existence, based upon our certainty of “the imperfection of our self-knowledge” (Morning Hours, p. 107/Gesammelte Schriften 3/2, p. 147). We have certain knowledge, Mendelssohn contends, not only of ourselves but also of the limited scope of this knowledge. “I am not merely what I distinctly know of myself or, what amounts to the same, there is more to my existence than I might consciously observe of myself; and even what I know of myself is in and for itself capable of far greater development, greater distinctness, and greater completeness than I am able to give it” (Morning Hours, p. 103/Gesammelte Schriften 3/2, p. 141). From the limitations of our knowledge of ourselves (or, for that matter, of anything actual existing) together with the less plausible assumption that “that everything actual must be thought to be actual by some thinking being,” Mendelssohn infers that there is “an infinite intellect” that does represent everything to itself (Morning Hours, pp. 103f/Gesammelte Schriften 3/2, pp. 141ff).