=41.= The development of philosophic thought at Athens was, as we have noticed, much complicated by the political relations of Greece to Persia. Although the Persian empire had absorbed Asia Minor, it was decisively repulsed in its attacks on Greece proper. Athens was the centre of the resistance to it, and the chief glory of the victories of Marathon (490 B.C.) and Salamis (480 B.C.) fell to Athenian statesmen and warriors. By these successes the Hellenes not only maintained their political independence, but saved the images of their gods from imminent destruction. A revival of polytheistic zeal took place, as might have been expected. The wealth and skill of Greece were ungrudgingly expended in the achievement of masterpieces of the sculptor’s art, and their housing in magnificent temples. But even so religious doctrines strikingly similar to those of the Persians gained ground. The same Aeschylus who (in his _Persae_) celebrates the defeat of the national enemy, a few years later (in his _Agamemnon_) questions whether the Supreme Ruler be really pleased with the Greek title of Zeus, and the Greek method of worshipping him[46]. His more conservative successor Sophocles was contented, in the spirit of the Homeric bards, to eliminate from the old myths all that seemed unworthy of the divine nature. Euripides adopts a bolder tone. Reproducing the old mythology with exact fidelity, he ‘assails the resulting picture of the gods with scathing censure and flat contradiction[47].’ With equal vigour he attacks the privileges of noble birth, and defends the rights of the slave; he has a keen sympathy for all the misfortunes that dog man’s life; but his ethical teaching in no way derives its sanction from any theology. The Hellenes have lost confidence in their inherited outlook on the world. [Sidenote: The Sophists.]