§3.16.1αἰσθόμενοι δὲ αὐτοὺς οἱ Ἀθηναῖοι διὰ κατάγνωσιν ἀσθενείας σφῶν παρασκευαζομένους, δηλῶσαι βουλόμενοι ὅτι οὐκ ὀρθῶς ἐγνώκασιν ἀλλ’ οἷοί τέ εἰσι μὴ κινοῦντες τὸ ἐπὶ Λέσβῳ ναυτικὸν καὶ τὸ ἀπὸ Πελοποννήσου ἐπιὸν ῥᾳδίως ἀμύνεσθαι, ἐπλήρωσαν ναῦς ἑκατὸν ἐσβάντες αὐτοί τε πλὴν ἱππέων καὶ πεντακοσιομεδίμνων καὶ οἱ μέτοικοι, καὶ παρὰ τὸν Ἰσθμὸν ἀναγαγόντες ἐπίδειξίν τε ἐποιοῦντο καὶ ἀποβάσεις τῆς Πελοποννήσου ᾗ δοκοίη αὐτοῖς.
When the Athenians realized that they were making preparations through a low estimation of Athenian weakness, and wishing to show that they had judged incorrectly, but rather that they were capable, without moving the fleet at Lesbos, of easily repelling the enemy advancing from the Peloponnese, they manned a hundred ships, embarking themselves (except for the cavalry and the pentacosiomedimni) and the metics; and having put to sea along the Isthmus, they made a demonstration and landed on the Peloponnese wherever they pleased.
§3.16.2οἱ δὲ Λακεδαιμόνιοι ὁρῶντες πολὺν τὸν παράλογον τά τε ὑπὸ τῶν Λεσβίων ῥηθέντα ἡγοῦντο οὐκ ἀληθῆ καὶ ἄπορα νομίζοντες, ὡς αὐτοῖς καὶ οἱ ξύμμαχοι ἅμα οὐ παρῆσαν καὶ ἠγγέλλοντο καὶ αἱ περὶ τὴν Πελοπόννησον τριάκοντα νῆες τῶν Ἀθηναίων τὴν περιοικίδα αὐτῶν πορθοῦσαι, ἀνεχώρησαν ἐπ’ οἴκου.
The Lacedaemonians, seeing so great a miscalculation, thought that what had been said by the Lesbians was not true, and considering the situation impracticable, since their allies at the same time were not present and news was brought that the thirty Athenian ships around the Peloponnese were ravaging their periokis, they retreated homeward.
§3.16.3ὕστερον δὲ ναυτικὸν παρεσκεύαζον ὅτι πέμψουσιν ἐς τὴν Λέσβον, καὶ κατὰ πόλεις ἐπήγγελλον τεσσαράκοντα νεῶν πλῆθος καὶ ναύαρχον προσέταξαν Ἀλκίδαν, ὃς ἔμελλεν ἐπιπλεύσεσθαι.
Later, however, they prepared a fleet to be sent to Lesbos, and requisitioned a total of forty ships from the cities, appointing Alcidas as admiral, who was to sail.
§3.16.4ἀνεχώρησαν δὲ καὶ οἱ Ἀθηναῖοι ταῖς ἑκατὸν ναυσίν, ἐπειδὴ καὶ ἐκείνους εἶδον.
The Athenians also retreated with their hundred ships when they saw that the others had done so.