The Turkish empire thus included all Greece on the mainland, but the Greeks were never really subdued.  On all the steep hills were castles or convents, which the Turks were unable to take; and though there were Turkish Beys and Pashas, with soldiers placed in the towns to overawe the people, and squeeze out a tribute, and a great deal more besides, from the Greek tradesmen and farmers, the main body of the people still remembered they were Greeks and Christians.  Each village had its own church and priest, each diocese its bishop, all subject to the Patriarchs of Constantinople; and the Sultans, knowing what power these had over the minds of the people, kept them always closely watched, often imprisoned them, and sometimes put them to death.  The islands for the most part were still under Venice, and some of the braver-spirited young men became Stradiots in the Venetian service; but too many only went off into the mountains, and became robbers and outlaws there, while those who lived a peaceable life gave way under their miseries to the two greatest faults there had always been in the Greek nature, namely, cheating and lying. They were so sharp and clever that the dull Turks were forced to employ them, so that they grew rich fast; and then, as soon as the Pasha suspected them of having wealth, however poor they seemed to be, he would seize them, rob them, or kill them to get their money; and, what was worse, their daughters were taken away to be slaves or wives to these Mahommedans.  The clergy could get little teaching, and grew as rude and ignorant as their flocks; for though the writings of the great teachers of the early Church were laid up in the libraries in the convents, nobody ever touched them.  But just as, after the Macedonian conquest of old Greece, the language spread all over the East; so, after the Turkish conquest of Constantinople, Greek became much better known in Europe, for many learned men of the schools of Constantinople took refuge in Italy, bringing their books with them; the scholars eagerly learned Greek, and the works of Homer and of the great old Greek tragedians became more and more known, and were made part of a learned education.  The Greeks at home still spoke the old tongue, though it had become as much altered from that of Athens and Sparta as Italian is from Latin.