"Your occupation consists in preserving your hiding-place, and that you succeed in doing, for your mask is the most enigmatical of all. In fact you are nothing; you are merely a relation to others, and what you are you are by virtue of this relation. To a fond shepherdess you hold out a languishing hand, and instantly you are masked in all possible bucolic sentimentality. A reverend spiritual father you deceive with a brotherly kiss, etc. You yourself are nothing, an enigmatic figure on whose brow is inscribed Either/or – “For this,” you say, “is my motto, and these words are not, as the grammarians believe, disjunctive conjunctions; no, they belong inseparably together and therefore ought to be written as one word…""
January 1, 1970
https://en.wikiquote.org/wiki/Mask