A charming style, a vivid fancy, exhaustive research, were not to be expected from a hard-worked barrister; but he must certainly be held responsible for the frequent plagiarisms, the still more frequent inaccuracies of detail, the colossal vanity which obtrudes on almost every page,'the hasty insinuations against the memory of the great departed who were to him as giants, and the petty sneers which he condescends to print against his own contemporaries, with whom he was living from day to day on terms of apparently sincere friendship.
Castil-Blaze has accused Rousseau of extensive plagiarisms (or worse) in Le Devin du village and Pygmalion, but apparently without sufficient cause.
His own plagiarisms were doubtless facilitated by the physiological effects of opium.
Bonacci's Saggio sulla Storia civile del Giannone (Florence, 1903) is a bitter attack on Giannone, and although the writer's remarks' on the plagiarisms in the Storia civile are justified, the charge of servility is greatly exaggerated.
The introduction to the latter requires revision in the light of later discoveries as to the plagiarisms in the text.