Please add punctuation to this: We may have succeeded at the price of too much eccentricity or we may have failed but we can hardly have failed completely the subjectmatter being so attractive that only extravagant incompetence could make it dull
We may have succeeded at the price of too much eccentricity, or we may have failed; but we can hardly have failed completely, the subject-matter being so attractive that only extravagant incompetence could make it dull.