"A bad manner spoils everything, even reason and justice a good one supplies everything, gilds a No, sweetens a truth, and adds a touch of beauty to old age itself."

"A single lie destroys a whole reputation of integrity."

"Even knowledge has to be in the fashion, and where it is not, it is wise to affect ignorance."

"Nature scarcely ever gives us the very best for that we must have recourse to art."

"A quiet mind is capable of understanding that the most profound truths are found in silence."

"The mind is a dangerous weapon, even to the possessor, if he knows not discreetly how to use it."

"It is from a weakness and smallness of mind that men are opinionated and we are very loath to believe what we are not able to comprehend."

"There is something so amiable in the prejudices of a young mind, that one is sorry to see them give way to the reception of more general opinions."