The Holy Spirit uses sects as means of salvation. The Holy Spirit does not give life to heretics. We must pray with heretics for unity. If anyone prays with heretics, he is a heretic. Liberty of conscience is a right of man.
Liberty of conscience is insanity.
Gregory XVI, D. 1613 8. Heretics are Christians. Only Catholics can be Christians. Pius VI, D. 1500 9. Each man is united with Christ.