Nihilism is the belief that nothing has inherent meaning or value. This can include the idea that life is without purpose, that there are no objective moral principles, or that knowledge is impossible. For example, a nihilist might believe that there is no ultimate reason to be good or bad, that suffering and joy are equally meaningless, or that all attempts to understand the universe are ultimately futile. Nihilism suggests a lack of belief in anything, and it can extend to the rejection of commonly held values like truth, justice, or beauty.