Commentary on the First Alcibiades of Plato

Since this book of Proclus is not an exposition of one system whose diverse parts cohere with a connecting link, but rather a context of annotations and disquisitions regarding each of the opinions and more difficult passages that the first Alcibiades of Plato contains, it is by no means possible that the connections and series missing from the commentary itself can be found in the argument of the commentary. Here, therefore, instead of the consequent order of opinions more tightly joined among themselves, there will be placed only an enumeration of the propositions that emerge and stand out from the middle of the work.

The work is preceded by an introduction in which these main points are clearly explained:

The knowledge of human nature is the principle upon which all philosophical speculation rests;