Portal:Religion/Selected article/17

Atheism is the disbelief in the existence of any deities. It is commonly defined as the denial of theism, amounting to the positive assertion that deities do not exist, or as the deliberate rejection of theism. However, others—including most atheistic philosophers and groups—define atheism as the simple absence of belief in deities (cf. nontheism), thereby designating many agnostics, and people who have never heard of gods, such as newborn children, as atheists as well. In recent years, some atheists have adopted the terms strong and weak atheism to clarify whether they consider their stance one of positive belief (strong atheism) or the mere absence of belief (weak atheism).

Many self-described atheists share common skeptical concerns regarding supernatural claims, citing a lack of empirical evidence for the existence of deities. Other rationales for atheism range from the philosophical to the social to the historical. Additionally, although atheists tend toward secular philosophies such as humanism, naturalism, and materialism, there is no one ideology or set of behaviors that all atheists adhere to.