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Education and intellectual influences

De Gaulle began writing in his early teens, especially poetry; his family paid for a composition, a one-act verse play, to be privately published. A voracious reader, he favored philosophical tomes by such writers as Bergson, Péguy, and Barrès. In addition to the German philosophers Nietzsche, Kant, and Goethe, he read the works of the ancient Greeks (especially Plato) and the prose of Chateaubriand.

De Gaulle was educated in Paris at the Collège Stanislas and studied briefly in Belgium. At the age of fifteen he wrote an essay imagining "General de Gaulle" leading the French Army to victory over Germany in 1930; he later wrote that in his youth he had looked forward with somewhat naive anticipation to the inevitable future war with Germany to avenge the French defeat of 1870.

France during de Gaulle's adolescence was a divided society, with many developments which were unwelcome to the de Gaulle family: the growth of socialism and syndicalism, the legal separation of Church and state in 1905, and the reduction in the term of military service to two years. Equally unwelcome were the Entente Cordiale with Britain, the First Moroccan Crisis, and above all the Dreyfus Affair. Henri de Gaulle came to be a supporter of Dreyfus, but was less concerned with his innocence per se than with the disgrace which the army had brought onto itself. The period also saw a resurgence in evangelical Catholicism, the dedication of the Sacré-Cœur, Paris, and the rise of the cult of Joan of Arc.

De Gaulle was not an outstanding pupil until his mid-teens, but from July 1906 he focused on winning a place at the military academy, Saint-Cyr. Lacouture suggests that de Gaulle joined the army, despite being more suited to a career as a writer and historian, partly to please his father and partly because it was one of the few unifying forces which represented the whole of French society. He later wrote that "when I entered the Army, it was one of the greatest things in the world", a claim which Lacouture points out needs to be treated with caution: the army's reputation was at a low. It was used extensively for strike-breaking and there were fewer than 700 applicants for Saint-Cyr in 1908, down from 2,000 at the turn of the century.