The Statesman (also known by its Latin title, Politicus) is a Socratic dialogue written by Plato.
The text depicts a conversation among Socrates, the mathematician Theodorus, another person named Socrates (referred to as "Socrates the Younger"), and an unnamed philosopher from Elea referred to as "the Stranger". 
It is ostensibly an attempt to arrive at a definition of "statesman," as opposed to "sophist" or "philosopher" and is presented as following the action of the Sophist.

Translated by Benjamin Jowett

Plato (428/427 or 424/423 – 348/347 BC) was a philosopher in Classical Greece and the founder of the Academy in Athens, the first institution of higher learning in the Western world.