“All living beings are in effect characterized by a movement, which nothing can cause to cease, a movement that largely exceeds what is required by the satisfaction of needs and that, because of this, bears witness to an essential incompleteness. This incompleteness reveals that life is originarily bound to a world. Because the world to which the living being relates is essentially non-totalizable and unpresentable, living movement can not essentially complete itself. Thus, in the final analysis, life must be defined as desire, and in virtue of this view, life does not tend toward self-preservation, as we have almost always thought, but toward the manifestation of the world.”
From the abstract to “Life, Movement, and Desire” by Renaud Barbaras, Research in Phenomenology, Volume 38, Issue 1 (2008)
Living things are necessarily incomplete. Incompleteness is kinetic (“characterized by a movement”) and erotic (“defined as desire”) since it is in-complete only against the intuited backdrop of an encompassing whole. Barabaras is correct to say that this relation is “essentially non-totalizable and unpresentable” — to represent it would require completing it and to complete it would strip it of life. Plato is not just reticent to write deepest truths (e.g. discussions in Phaedrus and 7th Letter) — he is incapable of it. But what he can communicate is the incompleteness, the felt absence of the whole that is the source of movement and desire.
I am reminded of Socrates’ longing to bring the city-in-speech of the Republic to life:
“I should like, before proceeding further, to tell you how I feel about the Polis which we have described. I might compare myself to a person who, on beholding beautiful animals either created by the painter’s art, or, better still, alive but at rest, is seized with a desire of seeing them in motion or engaged in some struggle or conflict to which their forms appear suited; this is my feeling about the Polis which we have been describing.” — Socrates in Plato’s Timaeus, 19b-c
To present a “living city”, as I believe Plato attempts in the Republic, must be to present it as incomplete but as containing the seeds of its striving in the recognition of that incompleteness. To read that work requires that we read it defectively. If he were to succeed in writing a satisfactory account, then it will be be inscribed not on paper but rather into living souls of his readers.