ἐχθρός ἐστιν ὅλῃ τῇ πόλει καὶ τῷ τῆς πόλεως ἐδάφει

From LSJ

καὶ ἥ γε ἀνία τὸ ἐμποδίζον τοῦ ἰέναιsorrow is that which hinders motion

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