Ce qui nous rend la vanité des autres insupportable, c'est qu'elle blesse la nôtre. - François de La Rochefoucauld

Nous sommes si accoutumés à nous déguiser aux autres qu’enfin nous nous déguisons à nous-mêmes.

We do not despise all those with vices, but we do despise all those without a single virtue.

The reason why so few persons are agreeable in conversation is that each thinks more of what he desires to say, than of what the others say, and that we make bad listeners when we want to speak. Yet it is necessary to listen to those who talk, we should give them the time they want, and let them say even senseless things; never contradict or interrupt them; on the contrary, we should enter into their mind and taste, illustrate their meaning, praise anything they say that deserves praise, and let them see we praise more from our choice than from agreement with them. To please others we should talk on subjects they like and that interest them, avoid disputes upon indifferent matters, seldom ask questions, and never let them see that we pretend to be better informed than they are.