Friedrich Nietzsche, Untimely Meditations

"These solitary ones who are free in spirit know thatin one thing or another they must constantly put on an appearance that is different from the way they think; although they want nothing but truth and honesty, they are entangled in a web of misunderstandings. And despite their keen desire, they cannot prevent a fog of false opinions, of accommodation, of halfway concessions, of indulgent silence, of erroneous interpretation from settling on everything they do. And so a cloud of melancholy gathers around their brow, for such natures hate the necessity of appearances more than death, and their persistent bitterness about this makes them volatile and menacing. From time to time they take revenge for their violent selfconcealment, for their coerced constraint. They emerge from their caves with horrible expressions on their faces; at such times their words and deeds are explosions, and it is even possible for them to destroy themselves."