Reflecting in the present paper on the legitimacy of a work to collect together the ideas, concepts, and terms of Sándor Ferenczi, the author will explore, through a series of questions and answers, the following points: why it is so clear-cut that Ferenczi should be included in the company of those great psychoanalytic authors who might be deemed entitled to such a study; whether Ferenczi possessed his own language, and if this was the case, when and how he acquired it; what we mean when we refer to Ferenczi’s idiomatic language, and how we can profitably identify this language and bring it into focus; how, in practice, such a text should be organized; what its audience and function would be; and how it would be used by readers and students of Ferenczi.