The mere change of custom, even though it may be of advantage in some respects, unsettles men by reason of the novelty: therefore, if it brings no advantage, it does much harm by unprofitably disturbing the Church.
The Church seems to totter to its fall, almost all life extinct. On this occasion, any complaisance would be criminal which told you, whose hope and commission it is to preach the faith of Christ, that the faith of Christ is preached.
I am highly susceptible to the force of all truly religious music, especially to the music of my own church, the church of Shelley, Michelangelo, and Beethoven.
Although among heretics and schismatics there is the same Baptism, nevertheless, the remission of sins is not operative among them because of the very rottenness of discord and wickedness of dissension ... Baptism was in them, but it did not profit them outside the Church ... Outside the Church, Baptism works death because of discord.
What is held by the whole Church, and that not as instituted by Councils, but as a matter of invariable custom, is rightly held to have been handed down by authority.