Here's why:
* Life has no inherent purpose: Existentialism emphasizes that life is inherently meaningless, and it is up to the individual to create their own purpose and meaning.
* Truth is subjective: Existentialism rejects the idea of absolute truth and instead focuses on individual experiences and perspectives. Truth becomes a personal discovery, not a fixed concept.
* Individual freedom and responsibility: Existentialists believe that we are free to make choices and create our own meaning. This freedom comes with the responsibility to choose and act in a way that reflects our own values and desires.
While these thoughts can be found in other philosophical schools, they are central to existentialism. Thinkers like Jean-Paul Sartre, Albert Camus, and Simone de Beauvoir are known for exploring these themes.