The devil won't stay where there is music.

No great saint lived without errors.

Not only the adoration of images is idolatry, but also trust in one's own righteousness, works and merits, and putting confidence in riches and power. As the latter is the commonest, so it also is the most noxious.

When the devil wants to cause offense against the true doctrine and faith, he does not do so through insignificant people, who do not rate highly with the world, but through those who are the very best, the wisest, the holiest, and the most learned.

What shall we do with...the Jews?...set fire to their synagogues or schools and bury and cover with dirt whatever will not burn, so that no man will ever again see a stone or cinder of them.

Blessed is the man that hath not walked in the way of the Sacramentarians, nor sat in the seat of the Zwinglians, nor followed the Council of the Zurichers.

Power without love is reckless and abusive, and love without power is sentimental and anemic.