Existentialists are philosophers who explore the nature of existence, freedom, and individual choice. They believe that life has no inherent meaning, and it is up to each person to create their own purpose. Key figures in this movement include Jean-Paul Sartre, Simone de Beauvoir, and Friedrich Nietzsche, who emphasized personal responsibility and the importance of authentic living. This philosophy often addresses feelings of anxiety and absurdity that arise from the human condition. Existentialists argue that confronting these feelings can lead to a deeper understanding of oneself and the world. Their ideas have influenced literature, psychology, and the arts, shaping modern thought.