Passage 10.18.2
γῆς Πέλοπος ναέται καὶ Ἀχαιίδος, οἳ ποτὶ Πυθώ ἤλθετε πευσόμενοι ὥς κε πτολίεθρον ἕλητε, ἀλλʼ ἄγε δὴ φράζεσθε λάχος πόσον ἦμαρ ἕκαστον λαῶν πινόντων ῥύεται πόλιν, ἡ δὲ πέπωκεν· οὕτω γάρ κεν ἕλοιτε Φάναν πυργήρεα κώμην.
Dwellers in the land of Pelops and in Achaea, you who have journeyed to Pytho seeking to learn how you might take the city, now heed carefully: consider what measure of water preserves the city each day when its people drink it; it has already drunk. For only thus shall you take Phana, the town of lofty towers.