Theaetetus (Annotated‪)‬

The Theaetetus is one of Plato's dialogues concerning the nature of knowledge, composed circa 369 BC.

In this dialogue, Socrates and Theaetetus discuss three definitions of knowledge: knowledge as nothing but perception, knowledge as true judgement, and, finally, knowledge as a true judgement with an account. Each of these definitions is shown to be unsatisfactory.

Socrates declares Theaetetus will have benefited from discovering what he does not know, and that he may be better able to approach the topic in the future. The conversation ends with Socrates' announcement that he has to go to court to face a criminal indictment.


This edition has formatted for your reader, with an active table of contents.  It has also been extensively annotated, with additional information about Laws and also Plato, including an overview, framing of the dialogue, section by section analysis of the dialogue, conclusion, significant references, and biographical information.