Free will implies the capacity to make decisions and act upon them without being solely determined by external influences or predetermined factors.

Existentialism places great importance on personal freedom, responsibility, and the ability to create meaning in one's life through choices and actions.

Determinism posits that every event, including human actions, is causally determined by preceding events and circumstances.

Eudaimonia, a Greek term often translated as 'flourishing' or 'well-being,' encompasses the idea of living a life that is fulfilling, virtuous, and in accordance with one's true nature.

Socrates emphasized the importance of self-examination and critical inquiry in the pursuit of a meaningful and virtuous life.

Compatibilism asserts that free will and determinism are not inherently incompatible and that it is possible for individuals to have genuine freedom of choice even within a deterministic framework.

Moral responsibility entails the ability to recognize and assess the ethical implications of one's choices and actions, and to be held accountable for them.

Jean-Paul Sartre's existentialist philosophy emphasizes the primacy of existence over essence, arguing that individuals create their own meaning and essence through their choices and actions.

Authenticity in existentialism involves living a life that is congruent with one's true self, values, and aspirations, rather than conforming to external expectations or societal norms.

Psychological hedonism posits that all human behavior is ultimately driven by the desire to maximize pleasure and minimize pain.

Self-determination theory focuses on the role of intrinsic motivation, personal autonomy, and psychological well-being in shaping human behavior and flourishing.

Aristotle's ethical theory emphasizes the importance of living in accordance with reason and virtue, and attaining eudaimonia through the pursuit of meaningful activities and relationships.

Existential angst is a feeling of anxiety, dread, or unease that arises from contemplating the meaninglessness of life, the inevitability of death, and the freedom and responsibility that come with existence.

Moral luck theory argues that the morality of an action can be affected by factors beyond the actor's control, such as the circumstances in which the action is performed.

Moral autonomy involves the ability to make moral choices and act upon them based on one's own values, principles, and beliefs, rather than being coerced or influenced by external factors.