If the highest aim of a captain were to preserve his ship, he would keep it in port forever.

To bear with patience wrongs done to oneself is a mark of perfection, but to bear with patience wrongs done to someone else is a mark of imperfection and even of actual sin.

Charity is the form, mover, mother and root of all the virtues.

The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false.

Hold firmly that our faith is identical with that of the ancients. Deny this, and you dissolve the unity of the Church.

The celestial bodies are the cause of all that takes place in the sublunar world.

A person is disposed to an act of choice by an angel ... in two ways. Sometimes, a man's understanding is enlightened by an angel to know what is good, but it is not instructed as to the reason why ... But sometimes he is instructed by angelic illumination, both that this act is good and as to the reason why it is good.