Passage 10.17.10
γένη μὲν τοσαῦτα τὴν Σαρδὼ καὶ ἐσῳκισμένα οὕτω νέμεται, τῆς δὲ νήσου τὰ πρὸς τῆς ἄρκτου καὶ ἠπείρου τῆς κατὰ Ἰταλίαν ἐστὶν ὄρη δύσβατα τὰ πέρατα συνάπτοντα ἀλλήλοις· καὶ ἢν παραπλέῃς, ναυσὶν οὔ τε ὅρμους παρέχεται κατὰ τοῦτο ἡ νῆσος πνεύματά τε ἄτακτα καὶ ἰσχυρὰ αἱ ἄκραι τῶν ὀρῶν καταπέμπουσιν ἐς τὴν θάλασσαν.
These, then, are the tribes inhabiting Sardinia and the manner in which they have settled there. As for the island itself, the northern parts facing the mainland toward Italy consist of rugged mountains whose extremities join together, making them difficult to pass. If one sails along this coast, the island offers no harbors, and the mountain peaks send down to the sea winds that are fierce and unpredictable.