From Epicurus curing fear of death to Machiavelli wielding it, Kierkegaard's anxiety and Heidegger's Angst — the emotion that governs so much of life.
What is fear — a useful signal, a political tool, or the mood that discloses our very being?
Fear is among the most powerful of emotions and one of the most philosophically instructive, because it stands at the crossroads of biology, ethics and politics. The ancients treated much of it as a curable error — a false belief about death or the gods — and made freedom from fear a central goal of the good life. Political thinkers saw its darker use: fear can bind a commonwealth together or let a ruler control it. Modern philosophy distinguished ordinary fear, which has a definite object, from anxiety or dread, which has none and yet reveals something fundamental about human existence. Recent work asks how fear distorts judgment and can be weaponized in public life. Reading these positions together shows why learning what to fear, and how much, is a lifelong ethical task.
Ancient Greek (Peripatetic)
Fear is a pain arising from the imagination of imminent, destructive or painful evil. It is not simply to be eliminated: the courageous person fears the right things, at the right time, in the right way, standing between cowardice and recklessness. Fear is also central to tragedy, which purges pity and fear (catharsis) in the spectator.
Rhetoric II.5; Nicomachean Ethics III; Poetics.
Epicureanism
The two greatest fears — of the gods and of death — are groundless and curable by philosophy. 'Death is nothing to us,' for where we are death is not, and where death is we are not; the gods do not meddle in human affairs. Removing these fears is the precondition of tranquillity (ataraxia), the highest pleasure.
Letter to Menoeceus; Principal Doctrines.
Epicurean poetry
Fear, especially the terror of death and the underworld, is bred by ignorance of nature; understanding that the soul is mortal and made of atoms dispels superstition. 'This terror of the mind must be dispelled not by the sun's rays but by the outward aspect and inner law of nature.' Enlightenment about the cosmos is therapy for fear.
On the Nature of Things (De rerum natura).
Roman Stoicism
We suffer more in imagination than in reality: 'there are more things likely to frighten us than to crush us.' Fear and hope are linked, both projecting the mind into an uncertain future; the remedy is to rehearse misfortune in advance (premeditatio malorum) and to accept what is not in our power. The wise man fears nothing because he has already faced it in thought.
Letters to Lucilius (esp. 13 and 24).
Political realism
Since it is hard to be both loved and feared, and men are fickle, it is 'much safer to be feared than loved' — provided the prince avoids being hated. Fear, resting on the dread of punishment, is a more reliable bond than love, which men cast off at their convenience. Fear is thus a deliberate instrument of rule, to be managed with care.
The Prince (1513), ch. 17.
Renaissance skepticism
'The thing I fear most is fear,' Montaigne wrote, noting how it can rob us of judgment more than the danger itself, driving armies to flee and men to leap from what they dread. He examines fear with a skeptic's detachment, observing its power to disorder the mind and counseling a familiar, unheroic acceptance of death.
Essays: 'Of Fear'; 'That to Philosophize Is to Learn to Die'.
Social contract
Fear, above all the fear of violent death, is the passion that inclines men to peace and drives them to erect a sovereign. Hobbes said he and fear were 'born twins' amid the Armada scare. In the commonwealth the sword's terror underwrites the laws; fear is not only the disease of the state of nature but the foundation of its cure.
Leviathan (1651); De Cive.
Rationalism
Fear is an inconstant pain arising from the idea of a future or past thing whose outcome is in doubt; it is inseparable from hope, since neither exists without the other. Both are passive affects that diminish our power of acting. The free man, guided by reason, 'thinks of nothing less than of death,' living by understanding rather than by fear and hope.
Ethics (1677), Parts III–IV.
Aesthetics / political thought
Fear is the ruling principle of the sublime: whatever excites ideas of danger, pain or terror, viewed from safety, produces the strongest emotion the mind can feel. Obscurity, vastness and power evoke this delightful horror. Fear thus lies at the root of one of our highest aesthetic experiences, not merely of our practical avoidances.
A Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful (1757).
Existentialism (Christian)
Anxiety (Angest) differs from fear: fear has a definite object, but anxiety is the 'dizziness of freedom' before the sheer possibility of possibility. It arises when the self confronts its own freedom and the nothing that grounds choice. Rightly understood, anxiety is not merely to be avoided; it educates the self and can lead, through faith, to its true task.
The Concept of Anxiety (1844).
Existential phenomenology
Fear (Furcht) is directed at a specific entity within the world, but anxiety (Angst) has no such object: it discloses the nothing and the uncanniness of being-in-the-world as such. In anxiety the world sinks into insignificance and Dasein is thrown back on its own most possibility — being-toward-death — opening the way to authentic existence.
Being and Time (1927); 'What Is Metaphysics?' (1929).
Contemporary ethics
Fear is a primitive, self-focused emotion, present even in infancy, that narrows attention to one's own survival and is easily manipulated by demagogues. Left unchecked it poisons democratic life, feeding blame, disgust and the scapegoating of vulnerable groups. Nussbaum argues fear must be tempered by hope, reasoned deliberation and cultivated compassion.
The Monarchy of Fear (2018); Upheavals of Thought (2001).