Candide is a French satire by Voltaire, a philosopher of the Age of Enlightenment. The work describes the abrupt cessation of this lifestyle, followed by Candide's slow, painful disillusionment as he witnesses and experiences great hardships in the world. Voltaire concludes with Candide, if not rejecting optimism outright, advocating a deeply practical precept, "we must cultivate our garden", in lieu of the Leibnizian mantra of Pangloss, "all is for the best" in the "best of all possible worlds". Candide is characterised by its sarcastic tone as well as by its erratic, fantastical and fast-moving plot. A picaresque novel with a story similar to that of a more serious Bildungsroman, it parodies many adventure and romance clichés, the struggles of which are caricatured in a tone that is mordantly matter-of-fact. Still, the events discussed are often based on historical happenings, such as the Seven Years' War and the 1755 Lisbon earthquake. As philosophers of Voltaire's day contended with the problem of evil, so too does Candide in this short novel, albeit more directly and humorously. Voltaire ridicules religion, theologians, governments, armies, philosophies, and philosophers through allegory; most conspicuously, he assaults Leibniz and his optimism. Candide contains thirty episodic chapters, which may be grouped into two main schemes: one consists of two divisions, separated by the protagonist's hiatus in El Dorado; the other consists of three parts, each defined by its geographical setting. By the former scheme, the first half of Candide constitutes the rising action and the last part the resolution. This view is supported by the strong theme of travel and quest, reminiscent of adventure and picaresque novels, which tend to employ such a dramatic structure.