The glaring absurdity of this doctrine is particularly disgusting from a man enjoying the greatest prosperity; who, from the bosom of happiness, endeavors, by the frightful and cruel image of all the calamities from which he is exempt, to reduce his fellow creatures to despair.

I, who had a better right than he to calculate and weigh all the evils of human life, impartially examine them, and proved to him that of all possible evils there was not one to be attributed to Providence, and which had not its source rather in the abusive use man made of his faculties than in nature.

I treated him, in this letter, with the greatest respect and delicacy possible.

Yet, knowing his self-love to be extremely irritable, I did not send the letter immediately to himself, but to Doctor Tronchin, his physician and friend, with full power either to give it him or destroy it.

Voltaire informed me in a few lines that being ill, having likewise the care of a sick person, he postponed his answer until some future day, and said not a word on the subject.
Tronchin, when he sent me the letter, inclosed in it another, in which he expressed but very little esteem for the person from whom he received it.
I have never published, nor even shown, either of these two letters, not liking to make a parade of such little triumphs; but the originals are in my collections.