This chapter deals with Gramsci's remarks and some potential subjects of discussion with Sraffa about Ricardo, classical political economy and `pure economics'. For him, the importance of Ricardo in the formation of Marx's ideas must be reassessed from the point of view of the world's conception and history; in 1932, he asked the opinion of Sraffa who was very sceptical about a Ricardian historicism, sending him bibliographical indications. Unfortunately, Gramsci did not receive any element of this bibliography and will not be able to react to Sraffa's remarks. Otherwise, he commented Pantaleoni's Principii di economia pura (2nd ed., 1931) and gave an opinion about An Essay on the Nature and Significance of Economic Science by Robbins, through an indirect source. About the questions raised in these books, Gramsci would have appreciated a dialogue with Sraffa, a critic of marginalism. But unfortunately it was not the case.