St. Ignatius directed his disciples according to the maxim that more prudence and less piety is better than more piety and less prudence. His main desire was that they should always act together, presenting a united front, without a rift or a variation. He suppressed independence of mind, discouraged original thinking and unrestrained research, recommended commonly accepted opinions, and required all to hold without question the theology of St. Thomas. The training he imposed made ordinary men very much alike. And this is the mistake we have to guard against in considering the Jesuits. The intended unity never was enforced when the order became numerous and was joined by many able men. There arose so great a wealth of talent that it was followed by variety in ideas among them, such as the founder never contemplated. Their general, Aquaviva, forbade every opinion that contradicts St. Thomas. There could be no question whether it was true or false, and no other test of truth than conformity with his teaching. Yet Molina taught, in regard to grace, a doctrine very different from Thomism, and was followed by the bulk of his order. They were expected to think well of their rule and their rulers; but the most perspicacious exposure of what he called the infirmities of the company was composed by Mariana. Jesuits were by profession advocates of submission to authority; but the Jesuit Sarasa preceded Butler in proclaiming the infallibility of conscience. No other Society was so remarkable for internal discipline; but there were glaring exceptions. Caussin, confessor to Lewis XIII, opposed the policy of his superiors, and was dismissed by them. And when the general required works on theology to be revised at Rome, before publication, he was told that Father Gretser of Ingolstadt would never consent. They were all absorbed in the conflict with the Protestants; but when the idea of reunion arose, late in the seventeenth century, there were Jesuits, such as Masenius, one of those who anticipated Paradise Lost, who wrote in favour of it.