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Socrates. Good; but keep watch of me, and do not let me trick you; for by the same argument any offspring of a king should be called a king; and whether the same meaning is expressed in one set of syllables or another makes no difference; and if a letter is added or subtracted, that does not matter either, so long as the essence of the thing named remains in force and is made plain in the name.
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Hermogenes. What do you mean?
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Socrates. Something quite simple. For instance, when we speak of the letters of the alphabet, you know, we speak their names, not merely the letters themselves, except in the case of four, ε, υ, ο, ω.In Plato’s time the names epsilon, ypsilon, omicron, and omega were not yet in vogue. The names used were εἶ, ὖ, οὖ,andὦ. We make names for all the other vowels and consonants by adding other letters to them; and so long as we include the letter in question and make its force plain, we may properly call it by that name, and that will designate it for us. Take beta, for instance, The addition of e(η), t(τ), a(α) does no harm and does not prevent the whole name from making clear the nature of that letter which the lawgiver wished to designate; he knew so well how to give names to letters.
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Hermogenes. I think you are right.