Sincerity is a certain openness of heart. It is to be found in very few, and what we commonly look upon to be so is only a cunningsort of dissimulation, to insinuate ourselves into the confidence of others.
Francois de La RochefoucauldOnly strong natures can really be sweet ones; those that seem sweet are in general only weak, and may easily turn sour.
Francois de La Rochefoucauld