The worthy administrators of justice are like a cat set to take care of a cheese, lest it should be gnawed by the mice. One bite of the cat does more damage to the cheese than twenty mice can do.
Our character is composed of our ideas and our feelings: and, since it has been proved that we give ourselves neither feelings nor ideas, our character does not depend on us. If it did depend on us, there is nobody who would not be perfect. If one does not reflect, one thinks oneself master of everything; but when one does reflect, one realizes that one is master of nothing
People must have renounced, it seems to me, all natural intelligence to dare to advance that animals are but animated machines.... It appears to me, besides, that such people can never have observed with attention the character of animals, not to have distinguished among them the different voices of need, of suffering, of joy, of pain, of love, of anger, and of all their affections. It would be very strange that they should express so well what they could not feel.
Answer me, you who believe that animals are only machines. Has nature arranged for this animal to have all the machinery of feelings only in order for it not to have any at all?
A minister of state is excusable for the harm he does when the helm of government has forced his hand in a storm; but in the calm he is guilty of all the good he does not do.
Sensual pleasure passes and vanishes, but the friendship between us, the mutual confidence, the delight of the heart, the enchantment of the soul, these things do not perish and can never be destroyed.
I read these words which are the sum of all moral philosophy, and which cut short all the disputes of the casuists: When in doubt if an action is good or bad, refrain.