No man truly has joy unless he lives in love.

Three conditions are necessary for Penance: contrition, which is sorrow for sin, together with a purpose of amendment; confession of sins without any omission; and satisfaction by means of good works.

Behold our refutation of the error. It is not based on documents of faith, but on the reasons and statements of the philosophers themselves. If then anyone there be who, boastfully taking pride in his supposed wisdom, wishes to challenge what we have written, let him not do it in some corner nor before children who are powerless to decide on such difficult matters. Let him reply openly if he dare. He shall find me there confronting him, and not only my negligible self, but many another whose study is truth.

Clearly the person who accepts the Church as an infallible guide will believe whatever the Church teaches.

Eternity is called whole, not because it has parts, but because it is lacking in nothing.

He that obstinately denieth the truth before men upon earth, wilfully refuseth his soul's health in heaven.

The human mind may perceive truth only through thinking, as is clear from Augustine.