Socrates: You have seen loves good and fair, and also brave lovers of them.
Protarchus: I should think so.
Socrates: Search the universe for two terms which are like these two and are present everywhere.
Protarchus: Yet a third time I must say, Be a little plainer, Socrates.
Socrates: There is no difficulty, Protarchus; the argument is only in play, and insinuates that some things are for the sake of something else (relatives), and that other things are the ends to which the former class subserve (absolutes).
Protarchus: Your many repetitions make me slow to understand.
Socrates: As the argument proceeds, my boy, I dare say that the meaning will become clearer.
Protarchus: Very likely.
Socrates: Here are two new principles.
Protarchus: What are they?
Socrates: One is the generation of all things, and the other is essence.
Protarchus: I readily accept from you both generation and essence.
Socrates: Very right; and would you say that generation is for the sake of essence, or essence for the sake of generation?
Protarchus: You want to know whether that which is called essence is, properly speaking, for the sake of generation?
Socrates: Yes.
Protarchus: By the gods, I wish that you would repeat your question.
Socrates: I mean, O my Protarchus, to ask whether you would tell me that shipbuilding is for the sake of ships, or ships for the sake of shipbuilding? and in all similar cases I should ask the same question.
Protarchus: Why do you not answer yourself, Socrates?
Socrates: I have no objection, but you must take your part.
Protarchus: Certainly.
Socrates: My answer is, that all things instrumental, remedial, material, are given to us with a view to generation, and that each generation is relative to, or for the sake of, some being or essence, and that the whole of generation is relative to the whole of essence.
Protarchus: Assuredly.
Socrates: Then pleasure, being a generation, must surely be for the sake of some essence?
Protarchus: True.
Socrates: And that for the sake of which something else is done must be placed in the class of good, and that which is done for the sake of something else, in some other class, my good friend.