1) How are the dialogues to be read? Are the dialogues a compendium of philosophical doctrines in which the dialogue form is a convenient and entertaining way of expressing those theories or is the dialogue form itself essential to Plato’s philosophical doctrine? If the dialogues are a compendium, then we need only select out doctrines like recollection and the theory of forms to arrive at Plato’s philosophy. If the dialogue form itself is essential to Plato’s philosophical doctrine, then we may conclude we are being invited into a conversation about the questions that recollection and the theory of forms seek to answer and that we are not expected to take these doctrines as settled positions.
2) Plato lectured directly to students and colleagues in his Academy concerning his philosophical doctrines. Unfortunately, these lectures have been lost and we have only his dialogues, which were intended for a more general audience than his immediate philosophical associates. Aristotle does report on one such lecture, “On the Good,” in which he has Plato speak of the Good as the number One and the indefinite dyad as the source of all becoming and passing away in the universe. Indeed, it may be that Plato’s real doctrines are Pythagorean and mathematical in nature and were expressly withheld from those outside of the Academy.
3) For Plato, the most fundamental philosophical error is to mistake the image for what it represents. This is the mistake of the prisoners in Plato’s cave. For Plato, images are necessary for thought, but there is the danger that we will settle for the image as the reality instead of moving past it to the reality it represents. A good image is one that points beyond itself. You will decide for yourselves whether the doctrine of recollection and theory of the forms are such images.
4) In the Apology, Socrates tells us that he knew early on that had he engaged in politics as a philosopher he would have long since been executed. Thus, Socrates raises the question of whether a philosopher, by the very nature of his activity, stands in opposition to the state since he would naturally question the assumptions upon which the state rests. In the Republic, Plato tries to solve this problem by making philosophers the rulers of the state but concludes that no philosopher worthy of the name would be willing to do the dirty work required of a ruler. What remains is for the philosopher to build the ideal city within himself. This is what Socrates does in the Crito, where it is the laws of an ideal city of Athens that persuade him not to escape the actual, historical Athens
.