Unbelief is the greatest of sins.

It would be superfluous to receive by faith, things that can be known by natural reason

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.

He who is drawn to something desirable does not desire to have it as a thought but as a thing.

Because philosophy arises from awe, a philosopher is bound in his way to be a lover of myths and poetic fables. Poets and philosophers are alike in being big with wonder.

There would not be a perfect likeness of God in the universe if all things were of one grade of being.

A man does not always choose what his guardian angel intends.