Isocrates, On the Peace 116-119
“If you listen to me, and you stop taking just any kind of advice at all and pay attention to yourselves and the city, you will gain some wisdom and examine what happened to these two cities, ours and Sparta. How did their empires over Greece rise up from pretty basic affairs and then, once they each took unrivaled power, how did they risk enslavement? What was the reason that the Thessalians, who have the most wealth, and the best and most abundant land, fell into poverty, but the Megarians, whose starting point was small and ragged, and even though they did not have land or harbors, or silver minds but were just farming stones, developed the richest economy of the Greeks?
Why do other people frequently control the Thessalians’ fortresses when they have a cavalry over three thousand and countless peltasts beyond that while the Megarians, who have only a small force, control their city as they want? In addition to this, why are the Thessalians always at war against one another while the Megarians who live near the Peloponnesians, the Thebans, and our city manage to survive at peace?
If you work through these questions, you will find that a lack of self-control and arrogance are the cause of our problems, while prudence is responsible for all of our advantages.”
Ἢν οὖν ἐμοὶ πεισθῆτε, παυσάμενοι τοῦ παντάπασιν εἰκῇ βουλεύεσθαι προσέξετε τὸν νοῦν ὑμῖν αὐτοῖς καὶ τῇ πόλει, καὶ φιλοσοφήσετε καὶ σκέψεσθε τί τὸ ποιῆσάν ἐστι τὼ πόλη τούτω, λέγω δὲ τὴν ἡμετέραν καὶ τὴν Λακεδαιμονίων, ἐκ ταπεινῶν μὲν πραγμάτων ἑκατέραν ὁρμηθεῖσαν ἄρξαι τῶν Ἑλλήνων, ἐπεὶ δ᾿ ἀνυπέρβλητον τὴν δύναμιν ἔλαβον, περὶ ἀνδραποδισμοῦ κινδυνεῦσαι· καὶ διὰ τίνας αἰτίας Θετταλοὶ μέν, μεγίστους πλούτους παραλαβόντες καὶ χώραν ἀρίστην καὶ πλείστην ἔχοντες, εἰς ἀπορίαν καθεστήκασι, Μεγαρεῖς δέ, μικρῶν αὐτοῖς καὶ φαύλων τῶν ἐξ ἀρχῆς ὑπαρξάντων, καὶ γῆν μὲν οὐκ ἔχοντες οὐδὲ λιμένας οὐδ᾿ ἀργυρεῖα, πέτρας δὲ γεωργοῦντες, μεγίστους οἴκους τῶν Ἑλλήνων κέκτηνται· κἀκείνων μὲν τὰς ἀκροπόλεις ἄλλοι τινὲς ἀεὶ κατέχουσιν, ὄντων αὐτοῖς πλέον τρισχιλίων ἱππέων καὶ πελταστῶν ἀναριθμήτων, οὗτοι δὲ μικρὰν δύναμιν ἔχοντες τὴν αὑτῶν ὅπως βούλονται διοικοῦσιν· καὶ πρὸς τούτοις οἱ μὲν σφίσιν αὐτοῖς πολεμοῦσιν, οὗτοι δὲ μεταξὺ Πελοποννησίων καὶ Θηβαίων καὶ τῆς ἡμετέρας πόλεως οἰκοῦντες εἰρήνην ἄγοντες διατελοῦσιν. ἢν γὰρ ταῦτα καὶ τὰ τοιαῦτα διεξίητε πρὸς ὑμᾶς αὐτούς, εὑρήσετε τὴν μὲν ἀκολασίαν καὶ τὴν ὕβριν τῶν κακῶν αἰτίαν γιγνομένην, τὴν δὲ σωφροσύνην τῶν ἀγαθῶν.