Plato, Laws 843b

μηδεὶς γὰρ ἑκὼν κινείτω γῆς ὅρια γειτόνων· ὃς δʼ ἂν κινήσῃ, μηνυέτω μὲν ὁ βουλόμενος τοῖς γεωργοῖς, οἱ δὲ εἰς τὸ δικαστήριον ἀγόντων. ἢν δέ τις ὄφλῃ τὴν τοιαύτην δίκην, ὡς ἀνάδαστον γῆν λάθρᾳ καὶ βίᾳ ποιοῦντος τοῦ ὄφλοντος, τιμάτω τὸ δικαστήριον ὅτι ἂν δέῃ πάσχειν ἢ ἀποτίνειν τὸν ἡττηθέντα.τὸ δὲ μετὰ τοῦτο βλάβαι πολλαὶ καὶ σμικραὶ γειτόνων γιγνόμεναι, διὰ τὸ θαμίζειν ἔχθρας ὄγκον μέγαν ἐντίκτουσαι,

voluntarily move the boundary-marks of the land of neighbors: if any man shall move them, whosoever wishes shall report him to the land-holders, and they shall bring him to the law court. And if a man be convicted,—since by such an act the convicted man is secretly and violently merging lands in one,—the court shall estimate what the loser must suffer or pay. Further, many small wrongs are done against neighbors which, owing to their frequent repetition, engender an immense amount of enmity, and make of neighborhood a grievous and bitter thing.