Sincerity shares the same structure as bad faith and can collapse into it

Evidence

Thus the essential structure of sincerity does not differ from that of bad faith since the sincere man constitutes himself as what he is in order not to be it. This explains the truth recognized by all that one can fall into bad faith through being sincere. As Valéry pointed out, this is the case with Stendhal. Total, constant sincerity as a constant effort to adhere to oneself is by nature a constant effort to dissociate oneself from oneself. A person frees himself from himself by the very act by which he makes himself an object for himself. To draw up a perpetual inventory of what one is means constantly to redeny oneself and to take refuge in a sphere where one is no longer anything but a pure, free regard. — Jean-Paul Sartre, Being and Nothingness, 311

Categorization

• XREF: Reverses the common-sense opposition between sincerity and bad faith — ties directly to Beauvoir’s account of authenticity in The Ethics of Ambiguity, which builds on this paradox. — connects to: The sincerity demanded by critics is itself a form of bad faith. — Jean-Paul Sartre, Being and Nothingness: An Essay on…, 309; Sincerity reveals itself as a form of bad faith — Jean-Paul Sartre, Being and Nothingness: An Essay on…, 306; Sincerity can be an active ingredient of self-deception rather than its opposite — Ann Laura Stoler, Along the Archival Grain_ Epistemic…, 1405 (+2 more)
• DEEPTHINKING: The claim that constant self-inventorying is itself a flight from oneself is a genuinely paradigm-shifting inversion — the harder one tries to be sincere, the more one objectifies and escapes oneself.

Broader Connections

• Sincerity reveals itself as a form of bad faith #corroborates (0.95) — Jean-Paul Sartre, Being and Nothingness, 306
• Sincerity can be an active ingredient of self-deception rather than its opposite #corroborates (0.95) — Ann Laura Stoler, Along the Archival Grain_ Epistemic…, 1405
• Sincerity aims at an ideal mode of being human nature prevents attaining #expands (0.80) — Jean-Paul Sartre, Being and Nothingness, 312