aristocracy was upheld. In his 1651 book Leviathan, Thomas Hobbes describes an aristocracy as a commonwealth in which the representative of the citizens is an assembly by part only. It is a system in which only a small part of the population represents the government; "certain men distinguished from the rest". Modern depictions of aristocracy tend to regard it not as the ancient Greek concept of rule by the best, but more as an oligarchy or plutocracy—rule by the few or the wealthy. The concept of aristocracy according to Plato has an ideal state ruled by the philosopher king. Plato describes "philosopher kings" as "those who love the sight of truth" (Republic 475c) and supports the idea with the analogy of a captain and his ship or a doctor and his medicine. According to him, sailing and health are not things that everyone is qualified to practice by nature. A large part of the Republic then addresses how the educational system should be set up to produce philosopher kings. Differentiation In contrast to its original conceptual drawing in classical antiquity, aristocracy has been associated in the modern era with its more general and degenerated form of oligarchy, specifically an aristocracy class based oligarchy, with entitled nobility as in monarchies or aristocratic merchant republics. Its original classical understanding has been taken up by the modern concepts that can be loosely equivalent to meritocracy or technocracy. History Aristocracies dominated political and economic power for most of the medieval and modern periods almost everywhere in Europe, using their wealth and land ownership to form a powerful political force. The English Civil War involved the first sustained organised effort to reduce aristocratic power in Europe. In the 18th century, the rising merchant class attempted to use money to buy into the aristocracy, with some success. However, the French Revolution in the 1790s forced many French aristocrats into exile and caused consternation and shock in the aristocratic families of neighbouring countries. After the defeat of Napoleon in 1814, some of the surviving exiles returned, but their position within French society was not recovered. Beginning in Britain, industrialization in the 19th century brought urbanization, with wealth increasingly concentrated in the cities, which absorbed political power. However, as late as 1900, aristocrats maintained political dominance in Britain, Germany, Denmark, Sweden, Austria and Russia, but it was an increasingly-precarious dominion. The First World War had the effect of