The subjects were taken usually from mythology, especially from the circle of legends relating to the siege of Troy, to the tragic history of the house of Atreus, the equally tragic history of the house of Laius, and the adventures of Hercules. The subject of "The Persae" of Aeschylus is a contemporary event, but this, as Grote says, was an exception. Heroic action and suffering, the awful force of destiny and of the will of heaven, are the general themes of Aeschylus and Sophocles; passion, especially feminine passion, is more frequently the theme of Euripides. Romantic love, the staple of the modern drama and novel, was hardly known to the Greeks, whose romantic affection was friendship, such as that of Orestes and Pylades, or Achilles and Patroclus. The only approach to romantic love in the extant drama is the love of Haemon and Antigone in the "Antigone" of Sophocles; and even here it is subordinate to the conflict between state law and law divine, which is the key-note of the piece; while the lovers do not meet upon the scene. The sterner and fiercer passions, on the whole, predominate, though Euripides has given us touching pictures of conjugal, fraternal, and sisterly love. In the "Oedipus Coloneus" of Sophocles also, filial love and the gentler feelings play a part in harmony with the closing scene of the old man's unhappy life. In the "Philoctetes," Sophocles introduces, as an element of tragedy, physical pain, though it is combined with moral suffering. A popular entertainment was of course adapted to the tastes of the people. Debate, both political and forensic, was almost the daily bread of the people of Athens. The Athenian loved smart repartee and display of the power of fencing with words. The thrust and parry of wit in the single-line dialogues (_stichomythia_) pleased them more than it pleases us. Rhetoric had a practical interest when not only the victory of a man's opinions in the political assembly, but his life and property before the popular tribunal, might depend on his tongue. The Drama was also used in the absence of a press for political or social teaching, and for the insinuation of political or social opinions. In reading these passages we must throw ourselves back twenty-three centuries, into an age when political and social observation was new, like politics and civilised society themselves, and ideas familiar to us now were fresh and struggling for expression. The remark may be extended to the political philosophy which struggles for expression in the speeches of Thucydides.