Problem of evil in the context of "Candide"

The phrase "the best of all possible worlds" (French: Le meilleur des mondes possibles; German: Die beste aller möglichen Welten) was coined by the German polymath and Enlightenment philosopher Gottfried Leibniz in his 1710 work Essais de Théodicée sur la bonté de Dieu, la liberté de l'homme et l'origine du mal (Essays of Theodicy on the Goodness of God, the Freedom of Man and the Origin of Evil), more commonly known simply as the Theodicy. The claim that the actual world is the best of all possible worlds is the central argument in Leibniz's theodicy, or his attempt to solve the problem of evil.

Omnibenevolence is the property of possessing maximal goodness. Some philosophers, such as Epicurus, have argued that it is impossible, or at least improbable, for a deity to exhibit such a property alongside omniscience and omnipotence, as a result of the problem of evil. However, some philosophers, such as Alvin Plantinga, argue the plausibility of co-existence.
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Will, within philosophy, is a faculty of the mind. Will is important as one of the parts of the mind, along with reason and understanding. It is considered central to the field of ethics because of its role in enabling deliberate action.

A recurring question in Western philosophical tradition is about free will—and the related, but more general notion of fate—which asks how the will can truly be free if a person's actions have either natural or divine causes determining them. In turn, this is directly connected to discussions on the nature of freedom and to the problem of evil.

Mu'tazilism (Arabic: المعتزلة, romanized: al-muʿtazila, singular Arabic: معتزلي, romanized: muʿtazilī) is an Islamic theological school that appeared in early Islamic history and flourished in Basra and Baghdad. Its adherents, the Mu'tazilites, were known for their neutrality in the dispute between Ali and his opponents such as Mu'awiya after the death of the third caliph, Uthman. By the 10th century the term al-muʿtazilah had come to refer to a distinctive Islamic school of speculative theology (kalām). This school of theology was founded by Wasil ibn Ata.

The later Mu'tazila school developed an Islamic type of rationalism, based around fundamental principles: the oneness (Tawhid) and justice (Al-'adl) of God, human freedom of action, and the creation of the Quran. The Mu'tazilites are best known for rejecting the doctrine of the Quran as uncreated and co-eternal with God, asserting that if the Quran is the literal word of God, he logically "must have preceded his own speech". This went against a common Sunni position (followed by the Ashʿarī and Māturīdī) which argued that with God being all-knowing, his knowledge of the Quran must have been eternal, hence uncreated just like him. The school also worked to resolve the theological "problem of evil", arguing that since God is just and wise, he cannot command what is contrary to reason or act with disregard for the welfare of His creatures; consequently evil must be regarded as something that stems from errors in human acts, arising from man's divinely bestowed free will.The Mu'tazila opposed secular rationalism, but believed that human intelligence and reason allowed Man to understand religious principles; that good and evil are rational categories that could be "established through reason".

Essais de Théodicée sur la bonté de Dieu, la liberté de l'homme et l'origine du mal (from French: Essays of Theodicy on the Goodness of God, the Freedom of Man and the Origin of Evil), more simply known as Théodicée [te.ɔ.di.se], is a book of philosophy by the German polymath Gottfried Leibniz. The book, published in 1710, introduced the term theodicy, and its optimistic approach to the problem of evil is thought to have inspired Voltaire's Candide (albeit satirically). Much of the work consists of a response to the ideas of the French philosopher Pierre Bayle and based on the author's conversation with Sophia Charlotte of Hanover, with whom Leibniz carried on a debate for many years.

Théodicée was the only book Leibniz published during his lifetime; his other book, New Essays on Human Understanding, was published after his death, in 1765.

A theodicy (from Ancient Greek θεός theos, "god" and δίκη dikē, "justice"), meaning 'vindication of God', is an argument in the philosophy of religion that attempts to resolve the problem of evil, which arises when all power (omnipotence) and all goodness (omnibenevolence) are attributed to God simultaneously.

Unlike a defense, which tries only to demonstrate that God and evil can logically coexist, a theodicy additionally provides a framework in which God and evil's existence are considered plausible. The German philosopher and mathematician Gottfried Leibniz coined the term theodicy in his book Théodicée (1710), though numerous responses to the problem of evil had previously been offered.