17. And now again they send suppliant ambassadors, with their garments rent and their heads covered with ashes, imploring assistance from the Romans, and like timorous chickens, crowding under the protecting wings of their parents, that their wretched country might not altogether be destroyed, and that the Roman name, which now was but an empty sound to fill the ear, might not become a reproach even to distant nations. Upon this, the Romans, moved with compassion, as far as human nature can be, at the relations of such horrors, send forward, like eagles in their flight, their unexpected bands of cavalry by land and mariners by sea, and planting their terrible swords upon the shoulders of their enemies, they mow them down like leaves which fall at the destined period; and as a mountain-torrent swelled with numerous streams, and bursting its banks with roaring noise, with foaming crest and yeasty wave rising to the stars, by whose eddying currents our eyes are as it were dazzled, does with one of its billows overwhelm every obstacle in its way, so did our illustrious defenders vigorously drive our enemies' band beyond the sea, if any could so escape them; for it was beyond those same seas that they transported, year after year, the plunder which they had gained, no one daring to resist them. 18. The Romans, therefore, left the country, giving notice that they could no longer be harassed by such laborious expeditions, nor suffer the Roman standards, with so large and brave an army, to be worn out by sea and land by fighting against these unwarlike, plundering vagabonds; but that the islanders, inuring themselves to warlike weapons, and bravely fighting, should valiantly protect their country, their property, wives and children, and, what is dearer than these, their liberty and lives; that they should not suffer their hands to be tied behind their backs by a nation which, unless they were enervated by idleness and sloth, was not more powerful than themselves, but that they should arm those hands with buckler, sword, and spear, ready for the field of battle; and, because they thought this also of advantage to the people they were about to leave, they, with the help of the miserable natives, built a wall different from the former, by public and private contributions, and of the same structure as walls generally, extending in a straight line from sea to sea, between some cities, which, from fear of their enemies, had there by chance been built. They then give energetic counsel to the timorous natives, and leave them patterns by which to manufacture arms. Moreover, on the south coast where their vessels lay, as there was some apprehension lest the barbarians might land, they erected towers at stated intervals, commanding a prospect of the sea; and then left the island never to return.