Agnosticism is the view or belief that the existence of God, the divine, or the supernatural is either unknowable in principle or unknown in fact. It can also mean an apathy towards such religious belief and refer to personal limitations rather than a worldview. Another definition is the view that "human reason is incapable of providing sufficient rational grounds to justify either the belief that God exists or the belief that God does not exist."
Theism is broadly defined as the belief in the existence of at least one deity. In common parlance, or when contrasted with deism, the term often describes the philosophical conception of God that is found in classical theism—or the conception found in monotheism—or gods found in polytheistic religions—or a belief in God or gods without the rejection of revelation, as is characteristic of deism.
The Invisible Pink Unicorn (IPU) is the goddess of a parody religion used to satirize theistic beliefs, taking the form of a unicorn that is paradoxically both invisible and pink. The IPU is a rhetorical illustration used by atheists and other religious skeptics as a contemporary version of Russell's teapot, sometimes mentioned in conjunction with the Flying Spaghetti Monster.
Irreligion is the absence or rejection of religious beliefs or practices. It encompasses a wide range of viewpoints drawn from various philosophical and intellectual perspectives, including atheism, agnosticism, skepticism, rationalism, secularism and spiritual but not religious. These perspectives can vary, with individuals who identify as irreligious holding a diverse array of specific beliefs about religion or its role in their lives.
Nontheism or non-theism is a range of both religious and non-religious attitudes characterized by the absence of espoused belief in the existence of God or gods. Nontheism has generally been used to describe apathy or silence towards the subject of gods and differs from atheism, or active disbelief in any gods. It has been used as an umbrella term for summarizing various distinct and even mutually exclusive positions, such as agnosticism, ignosticism, ietsism, skepticism, pantheism, pandeism, transtheism, atheism, and apatheism. It is in use in the fields of Christian apologetics and general liberal theology.
The existence of God is a subject of debate in the philosophy of religion and theology. A wide variety of arguments for and against the existence of God can be categorized as logical, empirical, metaphysical, subjective or scientific. In philosophical terms, the question of the existence of God involves the disciplines of epistemology and ontology and the theory of value.
Apatheism is the attitude of apathy toward the existence or non-existence of God(s). It is more of an attitude rather than a belief, claim, or belief system. The term was coined by Canadian sociologist Stuart Johnson.
Jewish atheism is the atheism of people who are ethnically and culturally Jewish.
Antony Garrard Newton Flew was an English philosopher. Belonging to the analytic and evidentialist schools of thought, Flew worked on the philosophy of religion. During the course of his career he taught philosophy at the universities of Oxford, Aberdeen, Keele, and Reading in the United Kingdom, and at York University in Toronto, Canada.
Antitheism, also spelled anti-theism, is the philosophical position that theism should be opposed. The term has had a range of applications. In secular contexts, it typically refers to direct opposition to the belief in any deity.
Atheism is the rejection of an assertion that a deity exists. In a narrower sense, positive atheism is specifically the position that there are no deities, effectively taking the stance of a positive claim in regards to the existence of any goddess or god. The English term 'atheist' was used at least as early as the sixteenth century and atheistic ideas and their influence have a longer history.
Russell's teapot is an analogy, formulated by the philosopher Bertrand Russell (1872–1970), to illustrate that the philosophic burden of proof lies upon a person making empirically unfalsifiable claims, as opposed to shifting the burden of disproof to others.
Criticism of atheism is criticism of the concepts, validity, or impact of atheism, including associated political and social implications. Criticisms include positions based on the history of science, philosophical and logical criticisms, findings in both the natural and social sciences, theistic apologetic arguments, arguments pertaining to ethics and morality, the effects of atheism on the individual, or the assumptions that underpin atheism.
The God Delusion is a 2006 book by British evolutionary biologist and ethologist Richard Dawkins. In The God Delusion, Dawkins contends that a supernatural creator, God, almost certainly does not exist, and that belief in a personal god qualifies as a delusion, which he defines as a persistent false belief held in the face of strong contradictory evidence. He is sympathetic to Robert Pirsig's statement in Lila (1991) that "when one person suffers from a delusion it is called insanity. When many people suffer from a delusion it is called religion." In the book, Dawkins explores the relationship between religion and morality, providing examples that discuss the possibility of morality existing independently of religion and suggesting alternative explanations for the origins of both religion and morality.
Some movements or sects within traditionally monotheistic or polytheistic religions recognize that it is possible to practice religious faith, spirituality and adherence to tenets without a belief in deities. People with what would be considered religious or spiritual belief in a supernatural controlling power are defined by some as adherents to a religion; the argument that atheism is a religion has been described as a contradiction in terms.
Implicit atheism and explicit atheism are types of atheism. In George H. Smith's Atheism: The Case Against God, "implicit atheism" is defined as "the absence of theistic belief without a conscious rejection of it", while "explicit atheism" is "the absence of theistic belief due to a conscious rejection of it". Explicit atheists have considered the idea of deities and have rejected belief that any exist. Implicit atheists, though they do not themselves maintain a belief in a god or gods, have not rejected the notion or have not considered it further.
Popularized by Richard Dawkins in The God Delusion, the spectrum of theistic probability is a way of categorizing one's belief regarding the probability of the existence of a deity.
The following outline is provided as an overview of and topical guide to atheism:
Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there are no deities. Atheism is contrasted with theism, which in its most general form is the belief that at least one deity exists.
Agnostic atheism — or atheistic agnosticism — is a philosophical position that encompasses both atheism and agnosticism. Agnostic atheists are atheistic because they do not hold a belief in the existence of any deity, and they are agnostic because they claim that the existence of a divine entity or entities is either unknowable in principle or currently unknown in fact.
