Translations for infallibility in French

Here are paragraphs from public domain books translated:

"That it is only the Pope who is infallible, and that this infallibility does not extend to cardinals."	— Qu’il n’y a que le pape qui soit infaillible, et que cette infaillibilité ne s’étend pas aux cardinaux.
The Three Musketeers, by Alexandre Dumas	Les Trois Mousquetaires, de Alexandre Dumas