In April, 1624, he went to Paris for the purpose of studying Canon Law, and after some time was deputed by the clergy in England to manage some affairs at Rome, where he was in 1626. In the year 1630, he was sent as President of the English College to Lisbon, a position which he resigned after two years, and returned to England to take up the work of the Mission. His name was sent to Rome in 1635 for the Episcopacy, in place of Dr. Smith Bishop of Chalcedon, who was in banishment. He was recommended by the clergy for his " learning, prudence and regular behaviour."
In 1650 he was again at Douay as Professor of Theology, but soon afterwards returned to England where he devoted himself chiefly to the publication of works, some of which created considerable stir in the religious world.
The opinions broached in them seemed at variance with orthodox teaching, and were repudiated by his fellow clergy, and twenty-two propositions taken from one of his works were condemned by the University of Douay.
In this connection, it may be interesting to note, that while still in Lisbon, having on one occasion drawn up some Theses, to be defended by one of his disciples in the Theological school, and obtained for them the approbation of the Inquisition, he was by a sudden order of the head Inquisitor forbidden to defend them, at the moment when the persons invited were preparing to assemble, and all things were in readiness for the exhibition.
Afterwards on a re-examination of the Theses, his doctrine was declared orthodox, and permission was given for them to be held.
The objection taken to his writings was carried to Rome, which, however, remained passive; "for though as is stated by Dodd, he had wit and learning enough to have occasioned a great disturbance in the Church, yet he wanted interest to make any considerable party, and they had the Charity to think he wanted the will."
One of the charges against him was for attacking the personal Infallibility of the Pope.