Atheism

Atheism, as an explicit position, can be either the affirmation of the nonexistence of gods, or the rejection of theism. It is also defined more broadly as synonymous with any form of nontheism, including the simple absence of belief in deities.

Many self-described atheists are skeptical of all supernatural beings and cite a lack of empirical evidence for the existence of deities. Others argue for atheism on philosophical, social or historical grounds. Although many self-described atheists tend toward secular philosophies such as humanism and naturalism, there is no one ideology or set of behaviors to which all atheists adhere; and some religions, such as Jainism and Theravada Buddhism, do not require belief in a personal god.

The term atheism originated as a pejorative epithet applied to any person or belief in conflict with established religion. With the spread of free thought, scientific skepticism, and criticism of religion, the term began to gather a more specific meaning and has been increasingly used as a self-description by atheists.

Logical atheism holds that the various conceptions of gods, such as the personal god of Christianity, are ascribed logically inconsistent qualities. Such atheists present deductive arguments against the existence of God, which assert the incompatibility between certain traits, such as perfection, creator-status, immutability, omniscience, omnipresence, omnipotence, omnibenevolence, transcendence, personhood (a personal being), nonphysicality, justice and mercy.

Theodicean atheists believe that the world as they experience it cannot be reconciled with the qualities commonly ascribed to God and gods by theologians. They argue that an omniscient, omnipotent, and omnibenevolent God is not compatible with a world where there is evil and suffering, and where divine love is hidden from many people. A similar argument is attributed to Siddhartha Gautama, the founder of Buddhism.

Philosophers such as Ludwig Feuerbach and Sigmund Freud argued that God and other religious beliefs are human inventions, created to fulfill various psychological and emotional wants or needs. This is also a view of many Buddhists. Karl Marx and Friedrich Engels, influenced by the work of Feuerbach, argued that belief in God and religion are social functions, used by those in power to oppress the working class. According to Mikhail Bakunin, "the idea of God implies the abdication of human reason and justice; it is the most decisive negation of human liberty, and necessarily ends in the enslavement of mankind, in theory and practice." He reversed Voltaire's famous aphorism that if God did not exist, it would be necessary to invent Him, writing instead that "if God really existed, it would be necessary to abolish him."