Nonostante questi fosse in uggia al cugino Leopardi, che ne celebrò ironicamente «le magnifiche sorti e progressive», né fosse gradito al Mazzini, Carducci lo aveva sempre tenuto in grande stima, tanto da includerlo nel ristretto gruppo dei sei dedicatari delle Rime del 1857, al cui interno vi erano per Mamiani una dedica e un sonetto.
Although he was in awe of his cousin Leopardi, who ironically exclaimed "the magnificent and progressive destiny," nor was it pleasing to Mazzini, Carducci had always held him in great esteem, so as to include him in the small group of the six devotees of the Rime of 1857, inside of which there was a dedication and a sonnet for Mamiani.