ὀπίσω τὼ χεῖρε δεῖν

From LSJ

ὤδινεν ὄρος, Ζεὺς δ' ἐφοβεῖτο, τὸ δ' ἔτεκεν μῦν → the mountain was in laboreven Zeus was afraid — but gave birth to a mouse

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