Translations for perseverance in French

Here are paragraphs from public domain books translated:

But I resisted all his solicitations and succeeded in dissuading him from his announced intention of walking home with me. I kept the road as long as his eye was on me, and then I struck off across the moor and made for the stony hill over which the boy had disappeared. Everything was working in my favour, and I swore that it should not be through lack of energy or perseverance that I should miss the chance which Fortune had thrown in my way.

Je résistai à toutes les sollicitations de Frankland et j’eus toutes les peines du monde à le dissuader de m’accompagner au château. Je suivis la grande route jusqu’au moment où Frankland devait me perdre de vue ; puis je me dirigeai vers la colline derrière laquelle le jeune garçon avait disparu. Les choses prenaient une tournure favorable et je jurai d’employer toute mon énergie et toute ma persévérance à profiter des chances que le hasard mettait à ma disposition.

The Hound of the Baskervilles, by Arthur Conan Doyle

Le Chien des Baskerville, de Arthur Conan Doyle