an existentialist.
sartre claimed that a central proposition of existentialism is that existence precedes essence, which means that the most important consideration for individuals is that they are individuals—independently acting and responsible, conscious beings ("existence")—rather than what labels, roles, stereotypes, definitions, or other preconceived categories the individuals fit ("essence"). the actual life of the individuals is what constitutes what could be called their "true essence" instead of there being an arbitrarily attributed essence others use to define them. thus, human beings, through their own consciousness, create their own values and determine a meaning to their life.