There is no more reason to accuse ourselves excessively of our failings than to excuse them overmuch. He who goes overboard in self-criticism often does so in order not to suffer others' criticisms, or else does so out of a kind of vanity that wishes to make others believe that he knows how to confess his faults.

He who uses trickery should at least make use of his judgment to learn that he can scarcely hide treacherous conduct for very long among clever men who are determined to find him out, although they may pretend to be deceived in order to disguise their knowledge of his deceitfulness.

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.

Nothing can tell us so much about the general lawlessness of humanity as a perfect acquaintance with our own immoderate behavior. If we would think over our own impulses, we would recognize in our own souls the guiding principle of all vices which we reproach in other people; and if it is not in our very actions, it will be present at least in our impulses. There is no malice that self-love will not offer to our spirits so that we may exploit any occasion, and there are few people virtuous enough not to be tempted.

When people reproach us, they only increase their own failings even as they are disclaiming them.

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.

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.