It is an important principle in morals and in politics, not to mistake the cause for the pretext, nor the pretext for the cause, and by this means to distinguish between the concealed and the ostensible motive. On this principle, history might be recomposed in a new manner; it would not often describe _circumstances_ and _characters_ as they usually appear. When we mistake the characters of men, we mistake the nature of their actions; and we shall find in the study of secret history, that some of the most important events in modern history were produced from very different motives than their ostensible ones. Polybius, the most philosophical writer of the ancients, has marked out this useful distinction of _cause_ and _pretext_, and aptly illustrates the observation by the facts which he explains. Amilcar, for instance, was the first author and contriver of the second Punic war, though he died ten years before the commencement of it. "A statesman," says the wise and grave historian, "who knows not how to trace the origin of events, and discern the different sources from whence they take their rise, may be compared to a physician who neglects to inform himself of the causes of those distempers which he is called in to cure. Our pains can never be better employed than in searching out the causes of events; for the most trifling incidents give birth to matters of the greatest moment and importance." The latter part of this remark of Polybius points out another principle which has been often verified by history, and which furnished the materials of the little book of "Grands Evenemens par les petites Causes." Our present inquiry concerns "cause and pretext." Leo X. projected an alliance of the sovereigns of Christendom against the Turks. The avowed object was to oppose the progress of the Ottomans against the Mamelukes of Egypt, who were more friendly to the Christians; but the concealed motive with his holiness was to enrich himself and his family with the spoils of Christendom, and to aggrandise the papal throne by war; and such, indeed, the policy of these pontiffs had always been in those mad crusades which they excited against the East. The Reformation, excellent as its results have proved in the cause of genuine freedom, originated in no purer source than human passions and selfish motives: it was the progeny of avarice in Germany, of novelty in France, and of love in England. The latter is elegantly alluded to by Gray-- And gospel-light first beam'd from Bullen's eyes.