In difficult times carry something beautiful in your heart.

Man's true nature being lost, everything becomes his nature; as, his true good being lost, everything becomes his good.

Il n'est pas certain que tout soit incertain. (Translation: It is not certain that everything is uncertain.)

We should seek the truth without hesitation; and, if we refuse it, we show that we value the esteem of men more than the search for truth.

One of the greatest artifices the devil uses to engage men in vice and debauchery, is to fasten names of contempt on certain virtues, and thus fill weak souls with a foolish fear of passing for scrupulous, should they desire to put them in practice.

If our condition were truly happy, we would not need diversion from thinking of it in order to make ourselves happy.

All men have happiness as their object: there is no exception. However different the means they employ, they all aim at the same end.