Freedom — A central concept in ethics, politics, and metaphysics, denoting an agent’s capacity for self-determination — to act from their own will rather than under external coercion or blind necessity. The great philosophical problem is the relation between freedom and determinism: if everything that happens is causally necessary, in what sense can we say we choose? For the Stoics, freedom is internal — free is the one who governs their own passions through reason and accepts what does not depend on them, a distinction that reappears in the notion of autonomy. Kant deepens this idea: transcendental freedom is the capacity to act according to the moral law that reason gives itself, independent of natural determinism — the very foundation without which moral duty would be impossible. For Sartre, in Being and Nothingness, the human being is “condemned to be free”: one cannot cease to choose, since even refusing to choose is itself a choice for which one is answerable. In political philosophy, Isaiah Berlin, in Two Concepts of Liberty, distinguishes negative liberty — the absence of obstacles and coercion, the space in which an individual acts without interference — from positive liberty — the capacity for self-determination and self-realization, the power to be one’s own master. A concrete example: having the legal right to travel (negative liberty) differs from having the actual means to do so (positive liberty). Closely related concepts are free will and responsibility, since it makes sense to assign merit or blame only to one who could have acted otherwise.
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