Opinion has caused more trouble on this little earth than plagues or earthquakes.

It requires ages to destroy a popular opinion

Fools have a habit of believing that everything written by a famous author is admirable. For my part I read only to please myself and like only what suits my taste.

Three Spaniards, four opinions

So long as you are a slave to the opinions of the many you have not yet approached freedom or tasted its nectar… But I do not mean by this that we ought to be shameless before all men and to do what we ought not; but all that we refrain from and all that we do, let us not do or refrain from merely because it seems to the multitude somehow honorable or base, but because it is forbidden by reason and the god within us.

Hence from all we have hitherto said, it is clear beloved Catholics that we cannot approve the opinions which some (Protestants, Jews, and other heretics) comprise under the head of Americanism (freedom)