There is, therefore, strictly speaking, neither freedom of thought in the Romish Church, nor healthy confinement of thought, nor exercise of the understanding, nor trial of faith. Thought is not free, for it is  bound to subscribe, not merely as in the Catholic Church, to the definite body of doctrine which has been received from the Apostles, but to whatever at any time, under the circumstances, the Bishop of Rome may have decreed or may still decree.
It is not healthily confined, for popery demanding so much,  which cannot be given from the heart, is obliged to content itself with the acquiescence of the lips, and to leave the mind really without control. The understanding is not exercised, because every answer is given authoritatively, and to be received implicitly.  And the faith is not tried, for where there is no doubt there is no difficulty and where there is  no difficulty there is no faith.
- Sewell’s Evidences of Christianity.