La Fayette rendered no serious military service to the American cause. He arrived in time to fight in the battle of the Brandywine. Washington praised him for his bravery and military ardor and wrote to Congress that he was sensible, discreet, and able to speak English freely. It was with an eye to the influence in France of the name of the young noble that Congress advanced him so rapidly. La Fayette was sincere and generous in spirit. He had, however, little military capacity. Later when he might have directed the course of the French Revolution he was found wanting in force of character. The great Mirabeau tried to work with him for the good of France, but was repelled by La Fayette's jealous vanity, a vanity so greedy of praise that Jefferson called it a "canine appetite for popularity and fame." La Fayette once said that he had never had a thought with which he could reproach himself, and he boasted that he has mastered three kings--the King of England in the American Revolution, the King of France, and King Mob of Paris during the upheaval in France. He was useful as a diplomatist rather than as a soldier. Later, in an hour of deep need, Washington sent La Fayette to France to ask for aid. He was influential at the French court and came back with abundant promises, which were in part fulfilled. Washington himself and Oliver Cromwell are perhaps the only two civilian generals in history who stand in the first rank as military leaders. It is doubtful indeed whether it is not rather character than military skill which gives Washington his place. Only one other general of the Revolution attained to first rank even in secondary fame. Nathanael Greene was of Quaker stock from Rhode Island. He was a natural student and when trouble with the mother country was impending in 1774 he spent the leisure which he could spare from his forges in the study of military history and in organizing the local militia. Because of his zeal for military service he was expelled from the Society of Friends. In 1775 when war broke out he was promptly on hand with a contingent from Rhode Island. In little more than a year and after a very slender military experience he was in command of the army on Long Island. On the Hudson defeat not victory was his lot. He had, however, as much stern resolve as Washington. He shared Washington's success in the attack on Trenton, and his defeats at the Brandywine and at Germantown. Now he was at Valley Forge, and when, on March 2, 1778, he became quartermaster general, the outlook for food and supplies steadily improved. Later, in the South, he rendered brilliant service which made possible the final American victory at Yorktown.