Within seven centuries, [the ancient Greeks] invented for itself, epic, elegy, lyric, tragedy, novel, democratic government, political and economic science, history, geography, philosophy, physics and biology; and made revolutionary advances in architecture, sculpture, painting, music, oratory, mathematics, astronomy, medicine, anatomy, engineering, law and war... a stupendous feat for whose most brilliant state Attica was the size of Hertfordshire, with a free population (including children) of perhaps 160,000.
F. J. Lucas