Sarpi's _Familiar Letters_ have for my mind even more weight than the famous _Lettres Provinciales_ of Pascal.

They were written with no polemical or literary bias, at a period when Jesuitry was in its prime; and their force as evidence is strengthened by their obvious spontaneity.

A book of some utility was published in 1703 at Salzburg ( ?), under the title of _Artes Jesuiticae_ Christianus Aletophilus.

This contains a compendium of those passages in casuistical writings on which Pascal based his brilliant satires.

Paul Bert's modern work, _La Morale des Jesuites_ (Paris: Charpentier, 1881), is intended to prove that recent casuistical treatises of the school repeat those ancient perversions of sound morals.] The working of the Company, as we have seen, depended upon a skillful manipulation of apparently hard-and-fast principles.