Ignorance is the mark of the heathen, knowledge of the true church, and conceit of the heretics.

He that is not a son of Peace is not a son of God. All other sins destroy the Church consequentially; but Division and Separation demolish it directly...

Theologians are called to be the church's water engineers and sewage officers; it is their job to see that God's pure truth flows abundantly where it is needed, and to filter out any intrusive pollution that might damage health.

It is surely harmful to souls to make it a heresy to believe what is proved.

Heresy is the school of pride.

When God's sheep are in danger, the shepherd must not gaze at the stars and meditate on "inspirational" themes. He is morally obliged to grab his weapon and run to their defense.

As Christ is the end of the Law and the Gospel and has within himself all the treasures of wisdom and understanding, so also is he the mark at which all heretics aim and direct their arrows.

...he that will blow the Coals must not wonder if some Sparks do fly in his face...

Can a mortal ask questions which God finds unanswerable? Quite easily, I should think. All nonsense questions are unanswerable.