Summary: What are the pros and cons of atheism? Atheism is the lack of belief in a god or gods. It holds that there are no good reasons to think that God exists. Without rational justification, it is wrong to accept a claim. Atheists value science, evidence, and reason. But atheism answers only one question, should we believe in God. It offers to comprehensive worldview and therefore is not humanly satisfying. Humankind needs an overall perspective from which to see and interpret the world. Atheism does not offer that.
