Who is an Atheist? Conceptual Clarification, Philosophical Approaches, and the Thoughts of New Atheism

The term “atheist” has undergone numerous definitions and interpretations throughout history. Derived from the Greek word atheos (meaning “without gods”), the term was initially used as a pejorative label for those who rejected the established deities of society or the state. However, in modern and contemporary philosophy, atheism is understood as a distinct intellectual, epistemological, and philosophical position. This article explores the precise definition of atheism, its distinction from similar concepts, its various internal currents, and the perspectives of its most prominent thinkers.

1. Conceptual Clarification & Types of Atheism

In the philosophy of religion, atheism is categorized into several distinct types to establish clear epistemological boundaries:

A) Negative (Weak) Atheism vs. Positive (Strong) Atheism

• Negative/Weak Atheism: This approach is defined simply as the “lack of belief in the existence of God or gods.” A weak atheist does not make an explicit claim that God does not exist; they merely state that they find no compelling reason to believe. In this view, the burden of proof rests entirely on theists.

• Positive/Strong Atheism: In this approach, the atheist goes beyond a mere lack of belief to explicitly assert the proposition: “God does not exist.” This position relies on philosophical arguments (such as the problem of evil or contradictions within divine attributes) to demonstrate that the existence of God is logically impossible or highly improbable.

B) Implicit Atheism vs. Explicit Atheism

• Implicit Atheism: Includes those who do not hold a belief in God simply because they have never encountered the concept (such as infants or primitive societies where the concept of God was never formulated).

• Explicit Atheism: Includes individuals who are familiar with the concept of God, have actively reflected upon it, and have made a conscious decision to reject it.

C) Atheism vs. Agnosticism

These two terms are frequently conflated. Atheism concerns belief; it is an answer to the question: “Do you believe in God?” (Answer: No). Agnosticism, on the other hand, concerns knowledge; it is an answer to the question: “Can we know with certainty whether God exists?” (Answer: No, such knowledge is currently impossible or inherently beyond human reach). Therefore, a person can be an “agnostic atheist”—someone who does not believe in God but acknowledges that the non-existence of God cannot be proven with absolute scientific certainty.

2. Views of Philosophical Pioneers

To grasp the depth of atheism, we must examine the perspectives of key thinkers who shaped its foundational arguments:

Bertrand Russell

The British philosopher and logician, in his celebrated essay “Why I Am Not a Christian”, criticized traditional arguments for the existence of God. To clarify the burden of proof, he introduced the famous analogy of “Russell’s Teapot.” He argued that if someone asserted that a tiny teapot orbits the sun between Earth and Mars but is too small to be seen by any telescope, others would not be obligated to believe it. The burden of proof lies entirely on the claimant, not on the skeptic.

Antony Flew

In his landmark paper “The Presumption of Atheism”, Flew argued that in any philosophical debate, the default position must be atheism. He asserted that until sufficient and convincing evidence is presented for the existence of God, the mind must remain in a state of non-belief—much like assuming a defendant is innocent until proven guilty in a court of law.

Jean-Paul Sartre

The French existentialist philosopher examined atheism through the lens of human freedom. Sartre argued that the absence of God grants human beings absolute freedom, which in turn brings absolute responsibility. He famously stated that humans are “condemned to be free” and must actively construct their own values and meaning in life.

3. The Four Horsemen of New Atheism

In the early 21st century, a movement known as “New Atheism” emerged, characterized by its direct critique of religion and a strong emphasis on scientific rationalism. Its primary figures became widely known as the “Four Horsemen”:

1. Christopher Hitchens

Hitchens, an author and polemicist, identified as an anti-theist. He argued that the concept of an omniscient God creates a form of celestial totalitarian dictatorship in the human mind. His famous epistemological rule is known as “Hitchens’s Razor”:

“What can be asserted without evidence can also be dismissed without evidence.” — Christopher Hitchens

2. Richard Dawkins

Dawkins, an evolutionary biologist, argues in “The God Delusion” that the hypothesis of a creator God is a highly improbable scientific claim. Simplifying the atheist position relative to other historical religions, he noted:

“We are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further.” — Richard Dawkins

3. Sam Harris

Harris, a neuroscientist and philosopher, focuses on the dangers of dogma and seeks to establish a secular framework for morality based on human well-being. Criticizing religious faith, he writes:

“Faith is the permission people give themselves to believe things when common sense and evidence tell them otherwise.” — Sam Harris

4. Daniel Dennett

Dennett, an eminent philosopher of mind and cognitive scientist (who passed away in 2024), studied religion as a natural phenomenon. In his book “Breaking the Spell”, he argued that religious beliefs are products of human evolutionary biology and culture, and should be subjected to the same scientific scrutiny as any other natural phenomenon.

4. Common Misconceptions About Atheism

• Atheism is not a religion: It lacks dogmas, religious rituals, or sacred texts. It is simply a negative response to a single question regarding belief in a deity.

• Atheism does not equate to a lack of morality: Secular Humanism has demonstrated that ethical principles are rooted in evolutionary history, social empathy, and human reason. One does not need the fear of supernatural punishment to lead a deeply moral and compassionate life.

Conclusion

At its core, atheism is an invitation to critical thinking, empirical evidence, and reliance on human reason to understand the universe. Whether expressed through classic philosophical arguments or the contemporary vigor of New Atheism, this intellectual position emphasizes that human beings are ultimately responsible for their own destiny, ethics, and meaning on Earth.

References

• Dawkins, Richard. (2006). The God Delusion. Bantam Books.

• Dennett, Daniel C. (2006). Breaking the Spell: Religion as a Natural Phenomenon. Viking.

• Flew, Antony. (1972). “The Presumption of Atheism”. Alternative Papers, University of Reading.

• Harris, Sam. (2004). The End of Faith: Religion, Terror, and the Future of Reason. W. W. Norton & Company.

• Hitchens, Christopher. (2007). God Is Not Great: How Religion Poisons Everything. Twelve.

• Martin, Michael. (1990). Atheism: A Philosophical Justification. Temple University Press.

• Russell, Bertrand. (1957). Why I Am Not a Christian. Simon and Schuster.

• Smith, George H. (1979). Atheism: The Case Against God. Prometheus Books.