The temptations of party politicians are of many kinds and vary greatly with different stages of political development. The worst is the temptation to war. War undertaken without necessity, or at least without serious justification, is, according to all sound ethics, the gravest of crimes, and among its causes motives of the kind I have indicated may be often detected. Many wars have been begun or have been prolonged in order to consolidate a dynasty or a party; in order to give it popularity or at least to save it from unpopularity; in order to divert the minds of men from internal questions which had become dangerous or embarrassing, or to efface the memory of past quarrels, mistakes or crimes.[43] Experience unfortunately shows only too clearly how easily the combative passions of nations can be aroused and how much popularity may be gained by a successful war. Even in this case, it is true, war usually impoverishes the country that wages it, but there are large classes to whom it is by no means a calamity. The high level of agricultural prices; the brilliant careers opened to the military and naval professions; the many special industries which are immediately stimulated; the rise in the rate of interest; the opportunities of wealth that spring from violent fluctuations on the Stock Exchange; even the increased attractiveness of the newspapers,--all tend to give particular classes an interest in its continuance. Sometimes it is closely connected with party sympathies. During the French wars of Anne, the facts that Marlborough was a Whig, and that the Elector of Hanover, who was the hope of the Whig party, was in favour of the war, contributed very materially to retard the peace. A state of great internal disquietude is often a temptation to war, not because it leads to it directly, but because rulers find a foreign war the best means of turning dangerous and disturbing energies into new channels, and at the same time of strengthening the military and authoritative elements in the community. The successful transformation of the anarchy of the great French Revolution into a career of conquest is a typical example. In aristocratic governments such as existed in England during the eighteenth century, temptations to corruption were especially strong. To build up a vast system of parliamentary influence by rotten boroughs, and, by systematically bestowing honours on those who could control them, to win the support of great corporations and professions by furthering their interests and abstaining from all efforts to reform them, was a chief part of the statecraft of the time. Class privileges in many forms were created, extended and maintained, and in some countries--though much less in England than on the Continent--the burden of taxation was most inequitably distributed, falling mainly on the poor.