There are petty-minded people who cannot endure to be reminded of their ignorance because, since they are usually quite blind to all things, quite foolish, and quite ignorant, they never question anything, and are persuaded that they see clearly what in fact they never see at all, save through the darkness of their own dispositions.

Self-love is even deceived by self-love, because by looking out for our own interests and disregarding those of other people, we lose the advantage that comes with the exchange of favors.

True merit does not depend on the times or on fashion. Those who have no other advantage than courtly manners lose it when they are away from court. But good sense, knowledge, and wisdom make their possessors knowledgeable and beloved in all ages and in all times.

We often value the exterior and superficial aspect of things more than their inner reality. Bad manners taint everything even justice and reason. The 'how' of things matters most, and even the most disagreeable matters can be sweetened and gilded over with the proper appearance. Such is the bias and the weakness of the human mind.

It is sometimes useful to pretend we are deceived, because when we show a deceiving man that we see through his artifices, we only encourage him to increase his deceptions.

Instead of taking care to acquaint ourselves with others, we only think of making ourselves known to them. It would be better to listen to other people in order to become enlightened rather than to speak so as to shine in front of them.

Wealth does not teach us to transcend the desire for wealth. The possession of many goods does not bring the repose of not desiring them.