Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Among Plato's later dialogues, the Parmenides is one of the most significant. Not only a document of profound philosophical importance in its own right, it also contributes to the understanding of Platonic dialogues that followed it, and it exhibits the foundations of the physics and ontology that Aristotle offered in his Physics and Metaphysics VII.

The most striking merits of Guthrie's work are his mastery of a tremendous range of ancient literature and modern scholarship.