Atheism is the belief that there is no God or divine being. Atheists do not subscribe to any religious doctrines and often rely on reason, science, and evidence to understand the world around them. They may question the existence of deities and the teachings of various religions, seeking explanations based on logic rather than faith. Many atheists advocate for secularism, which promotes the separation of religion from government and public life. This perspective encourages critical thinking and open dialogue about beliefs. Atheism can vary in its expression, with some individuals identifying as agnostic, meaning they are uncertain about the existence of God.