From most of the Sophists did not maintain full works, but only fragments, or certificate. In more or less complete form have only the following texts:
Gorge. There are two speeches: Praise of Helen and Protection Palameda. Currently, consider these fraudulent speech.
Antifont. Save a couple of speeches (the so-called tetralogy) and a fragment of essays truth. Crete. In a sixth empiricism we went snippet Sizif. According to most contemporary scholars, this text does not belong to Crete.
Dual speech anonymous author.
The main ancient sources for the Sophists are Plato, Aristotle, Diogenes Laertsky, Flavio Filostrat and others.
All the fragments and testimonies of the Sophists collected Labor Diels - Kranz. At the Russian language are translated only once Makovelskim. Often translated from German, now considered obsolete and has been criticized.