6) Platos's Charmides Question

From the text:

But that science is not wisdom or temperance, but a science of human advantage; not a science of other sciences, or of ignorance, but of good and evil: and if this be of use, then wisdom or temperance will not be of use.

The beginning of metaphysics and logic implied in the two questions: whether there can be a science of science, and whether the knowledge of what you know is the same as the knowledge of what you do not know; and also in the distinction between 'what you know' and 'that you know,' (Greek;) here too is the first conception of an absolute self-determined science (the claims of which, however, are disputed by Socrates, who asks cui bono?) as well as the first suggestion of the difficulty of the abstract and concrete, and one of the earliest anticipations of the relation of subject and object, and of the subjective element in knowledge—a 'rich banquet' of metaphysical questions in which we 'taste of many things.' (7) And still the mind of Plato, having snatched for a moment at these shadows of the future, quickly rejects them: thus early has he reached the conclusion that there can be no science which is a 'science of nothing' (Parmen.). The conception of a science of good and evil also first occurs here, an anticipation of the Philebus and Republic as well as of moral philosophy in later ages.