Existentialism’s Bold Affirmation of Freedom in the Face of Doubt

Existentialism begins its response by shifting the ground of the debate. Rather than engaging with deterministic arguments on their own terms—debating neural pathways or divine foreknowledge—thinkers like Jean-Paul Sartre and Simone de Beauvoir start with the immediate data of human experience: consciousness and choice. Sartre’s foundational principle, “existence precedes essence,” means humans are not born with a predetermined purpose or nature. First we simply exist; then, through our choices and actions, we define who we are. In this view, freedom is not an added property but the very fabric of our being. We are “condemned to be free,” as Sartre famously declared. This condemnation highlights that freedom is not a gift but a weighty, inescapable fact. Doubts arising from external causes are, to the existentialist, often a comforting evasion of this terrifying responsibility.

This leads to the crucial existentialist concept of bad faith (mauvaise foi), which is the primary mechanism through which we express doubts about our own freedom. Bad faith is the act of lying to oneself to deny one’s freedom and escape the anguish of choice. The waiter who overly identifies with his role, claiming “I am just a waiter,” or the person who blames their temperament (“I’m just a jealous person”) or their circumstances (“I had no choice”) are engaging in bad faith. They are pretending their essence is fixed, thus denying their freedom to act otherwise. Existentialism argues that doubts about free will are frequently manifestations of this self-deception. We wish we were not free because freedom entails anxiety and accountability. Deterministic theories, then, can become intellectual shelters, providing alibis for our failures and inactions.

However, existentialism does not ignore the concrete limitations of the human situation, which it terms facticity. Facticity encompasses all the things we did not choose: our body, our birthplace, our historical moment, our mortality. These are the “givens” of our existence. The existentialist response to determinism is not to deny facticity but to insist on our freedom to respond to it. Our freedom is always situated within these constraints. For example, one does not choose to be born with a physical disability (facticity), but one is absolutely free to choose the meaning of that disability—as an insurmountable obstacle, a challenge to overcome, or something else entirely. As Viktor Frankl, influenced by existential thought, demonstrated in his Holocaust experiences, even in the most brutally determined circumstances, the freedom to choose one’s attitude remains. Thus, existentialism reconciles constraint and freedom by arguing that we are always free to interpret and project ourselves beyond our facticity.

Ultimately, the existentialist response is a call to authenticity. Authenticity is the courageous acceptance of our radical freedom and its accompanying anguish, without the shelter of bad faith or external excuses. It requires acknowledging that we are the authors of our values and our lives, even in the face of overwhelming external pressures. While science may trace the causes of our desires and sociology may outline the influences upon us, existentialism maintains that the final assent to any desire or influence is a choice for which we are responsible. The philosophy, therefore, responds to doubts about free will not with empirical evidence but with a moral and phenomenological imperative: to live as if we are free, because in the realm of meaning and action, we are. In doing so, existentialism turns the debate from a theoretical problem into a personal challenge, asserting that our freedom is not something we discover to be true, but something we choose to make real through our committed actions.