Soriano was so sheepish as he described this memorable scene that it was difficult to doubt his sincerity.
Similar cases are numerous, and it will be difficult to doubt that hereditary predisposition exerts some influence over the recurrence of this deformity in children whose parents or ancestors have been affected by it.
And yet it is difficult to suppress doubts about how far the gallant's power actually extends, doubts which go to the heart of America's diplomacy after the cold war.
Yet it is difficult to shake the doubt that we can know any such thing a priori: isn't it merely a better explanation of the actual course of our experience that we are not envatted?
Otherwise it is difficult to reconcile the doubts and uncertainties about the future with the fact, as Reynolds shows, that there was nothing in Britain to resemble the punishing economic desperation or political terror that characterised so much of the rest of Europe.
Although Barzun's influence on literary studies is difficult to assess, there's little doubt about his role in the revival of Hector Berlioz.
Although the exact mechanism of the formation of these branched nanowires is difficult to know, it is no doubt relevant to the addition of surfactant dodecylthiol into the two mixed solvents of distilled water and toluene.
How migrant nurses in Ireland will square this particular circle is difficult to say, but there is little doubt that, for the time being at least, they will continue to struggle under the double burden of increasing taxation levels in Ireland alongside the consistent (and increasing) need for their remittance back home.
It is difficult to believe there were draft-day doubts 17 years ago about Marino.
