Pindar, Pythian 2.79-81:
ἅτε γὰρ εἰνάλιον πόνον ἐχοίσας βαθὺν
σκευᾶς ἑτέρας, ἀβάπτιστός εἰμι, φελλὸς ὣς ὑπὲρ ἕρκος ἅλμας.
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“For while the rest of the tackle labors in the depths, I am unsinkable, like a cork above the surface of the salt sea.” (Diane Arnson Svarlien)