What this essay is to discuss is Plato''s theory of explanation in Phaedo. In this dialogue, we observe that Socrates criticizes both the natural scientists’ explanations and Anaxagoras’ theory of Mind since he thinks they could not explain all things, firstly, in a unitary and, secondary, in a real way. Thence, we are to call what Plato is seeking as his ideal explanation in Phaedo “One Real Explanation”. He talks at least about three kinds of explanation, two of which, the confused and foolish way of explanation by Forms and the explanation by Forms appealing to essence, are just "second best" and lower degrees of explanation. His ideal explanation is an explanation that can explain all things by one thing and in a real way. Though he cannot show, at least in Phaedo, how this One Real Explanation can work, we can see Plato completing his plan by the Form of the Good in Republic.
