Philosophy in Psychotherapy: Existential Therapy, Logotherapy and the Stoic Roots of CBT

Last updated: October 21, 2026

Philosophy shows up in psychotherapy by name: several major schools say outright which philosophers they took their ideas from. Albert Ellis, who developed rational emotive behaviour therapy, wrote in 1962 that his central principle “was originally discovered and stated by the ancient Stoic philosophers”, and Aaron Beck’s team wrote in 1979 that the philosophical origins of cognitive therapy “can be traced back to the Stoic philosophers”, as the Stoicism author Donald Robertson documents with page numbers. Viktor Frankl’s logotherapy, which the Viktor Frankl Institute says was named the “Third Viennese School of Psychotherapy” in 1948, rests on the claim that the search for meaning is our primary motivation. Irvin Yalom’s Existential Psychotherapy (Basic Books, 1980) organises therapy around four “ultimate concerns”: death, freedom, existential isolation and meaninglessness.

The meme reaches the same place from the other end. Two cartoon figures, a woman with a brown ponytail and a man in a purple shirt, are drawn from behind as they look up at a pale building with a big sign: “MENTAL HEALTH CENTER”. A green wikiHow banner runs across the lower part of the image, and beneath it the article title: “How To Stop Doing Philosophy”. Along the right edge, set vertically, is the watermark of the site it came from. The joke treats philosophy as the illness, while a good part of modern psychotherapy was built with philosophical tools.

When Philosophers Called Their Schools Clinics

The idea that philosophy should heal is ancient: Hellenistic schools such as the Epicureans and the Stoics described their work in openly medical terms.

A fragment of Epicurus, preserved only through later authors and numbered 221 in Hermann Usener’s collection, puts it bluntly. In the translation that opens Michael McOsker’s chapter on Epicurean education as therapy in The Routledge Handbook of Hellenistic Philosophy (2020): “Vain is that philosopher’s argument by which no human suffering is cured.” The fragment goes on to compare philosophy with medicine, which is useless if it does not drive out disease. Epictetus, as quoted by Robertson, told his students that “the philosopher’s school is a doctor’s clinic” (Discourses 3.23.30). Martha Nussbaum built a whole book on this medical self-image, The Therapy of Desire (Princeton, 1994), which McOsker cites. Without diagnoses or insurance codes, they ran a training programme for beliefs and desires, led by teachers who traced much of human misery to getting the value of things wrong.

Epictetus in the Waiting Room: The Stoic Roots of CBT

Cognitive behavioural therapy draws partly on Stoic philosophy, and its founders said so themselves: Ellis and Beck both pointed to the Stoics, Epictetus in particular, as forerunners.

The passage both of them leaned on is section 5 of Epictetus’ Handbook (Enchiridion). Ellis quoted it in the form: people are disturbed “not by things, but by the views which they take of them” (Robertson, citing Ellis 1962, p. 54). Beck’s 1979 Cognitive Therapy of Depression named Zeno of Citium, Chrysippus, Cicero, Seneca, Epictetus and Marcus Aurelius in the same breath. The shared move: between an event and the feeling it triggers sits a judgement, and judgements can be examined, tested and revised. We covered how this fits the current Stoicism boom in our post on why Stoicism is trending; here the interesting part is what therapy did with it.

CBT took the method and left most of the metaphysics on the shelf. For Epictetus, external things such as health, property and reputation “cannot in themselves be either good or bad”, in the words of the Stanford Encyclopedia of Philosophy; the only real good is the right condition of one’s own will. A CBT therapist would get nowhere telling a depressed client that losing a job or a partner is morally indifferent, and the method aims lower: it checks whether a belief such as “I am worthless” survives contact with the evidence.

That narrowing may be one reason the method travelled so well. A 2012 review of meta-analyses by Stefan Hofmann and colleagues identified 269 meta-analyses of CBT, reviewed a representative sample of 106, and concluded that “the evidence-base of CBT is very strong”, with the strongest support for anxiety disorders, somatoform disorders, bulimia, anger control problems and general stress. The same authors asked for more randomised trials and more research on low-income and minority groups.

Frankl’s Third Viennese School: Logotherapy and the Will to Meaning

Logotherapy is Viktor Frankl’s meaning-centred psychotherapy, built on the claim that the search for meaning, more than pleasure or power, is what moves people.

Frankl (1905 to 1997) was an Austrian psychiatrist and psychotherapist from Vienna; Britannica summarises his theory as the view that “the individual’s primary motivation is the search for meaning in life.” According to the Viktor Frankl Institute, he first used the term “logotherapy” in lectures in 1926, from the Greek logos, which the institute glosses as meaning. In September 1942 he, his wife Tilly and his parents were deported to Theresienstadt; he later passed through Auschwitz and the Dachau subcamps Kaufering and Türkheim, where US troops liberated him on 27 April 1945. His father died in Theresienstadt, his mother and his brother were murdered in Auschwitz, and he learned of Tilly’s death shortly after liberation.

According to the institute, Frankl dictated his account of the camps in nine days in 1946, and it reached American readers in 1959 under the title From Death Camp to Existentialism, later known as Man’s Search for Meaning. The philosophical question behind the book gets its own treatment in our post on nihilism and the search for meaning.

The Frankl Institute describes paradoxical intention, used mainly for anxiety and compulsive disorders, as a way of interrupting the “vicious circle of symptom and symptom amplification” through self-distancing and humorous exaggeration, and dereflection as steering attention away from a symptom that grows the more one watches it. Its boldest philosophical commitment, in the institute’s words, is that meaning is “an objective reality”: something found in concrete situations and encounters, which sets Frankl against the view that we invent our values. The evidence is still modest. William Breitbart’s meaning-centred group psychotherapy for people with advanced cancer, which Breitbart describes as based on “the principles of Dr. Frankl’s logotherapy”, did better than supportive group therapy on quality of life, spiritual well-being, depression and hopelessness in a trial with 253 patients published in the Journal of Clinical Oncology in 2015, as the ASCO Post reported. For anxiety, the trial found no significant difference between the two groups.

Yalom’s Four Givens: What Existential Therapy Actually Does

Existential therapy is a family of approaches that treat certain facts of human existence, above all death, freedom, isolation and meaninglessness, as sources of anxiety that therapy should face directly instead of explaining away.

Yalom calls these four facts the “ultimate concerns of life” in Existential Psychotherapy. The working idea is that a good deal of everyday distress can be read as a defence against one of them. Mick Cooper’s textbook Existential Therapies (Sage, 2003), as summarised in a review on CounsellingResource, opens with a chapter on existential philosophers from Kierkegaard and Nietzsche to Heidegger and Sartre and then separates several strands: Ludwig Binswanger’s and Medard Boss’s Daseinsanalysis; Frankl’s logotherapy; the American existential-humanistic school of Rollo May, James Bugental and Yalom; and the British School of Existential Analysis around Emmy van Deurzen. Kierkegaard’s analysis of despair, which we unpack in our post on Kierkegaard and existential crisis, reads in places like a clinical case description written decades before psychotherapy existed as a profession.

The strands disagree on the big question. According to the same review, Frankl helps clients find a meaning that is already there, while Yalom encourages them to accept that life is “devoid of intrinsic meaning”. In miniature, that is the old quarrel between meaning as something found and Sartre’s line in Existentialism Is a Humanism (Philip Mairet’s translation): “You are free, therefore choose, that is to say, invent.” The evidence base is thinner than for CBT. A meta-analysis by Joël Vos, Meg Craig and Mick Cooper in the Journal of Consulting and Clinical Psychology, summarised in the University of York’s DARE database, pooled 15 trials with 1,792 participants. Structured meaning therapies showed large effects on meaning in life and moderate effects on psychopathology; supportive-expressive therapies showed small effects; experiential-existential approaches showed no significant effect in the two studies available. The authors themselves point to “the small number and low quality of studies”, and the best support came from structured programmes for physically ill patients.

Rogers, Maslow, and the Optimism Kant Did Not Share

Humanistic psychology is often presented as existentialism’s optimistic cousin, with a picture of people as growth-seeking that some philosophers it gets linked to would not have signed.

Abraham Maslow presented his hierarchy of needs in “A Theory of Human Motivation” in 1943, and, as Britannica notes, he thought self-actualisation was “relatively rare.” Carl Rogers originated the “nondirective, or client-centred, approach”, in which the client “determines the course, speed, and duration of treatment.” Both approaches assume that people tend to grow when conditions allow it, and popular accounts of the movement like to give that trust a philosophical pedigree. Kant is a poor fit for it. In Religion within the Boundaries of Mere Reason (1793) he argued for radical evil, what the Stanford Encyclopedia of Philosophy calls “our innate propensity to evil”, and he added that people “mutually corrupt each other’s moral dispositions.” The Internet Encyclopedia of Philosophy stresses the other half: Kant also grants humans “an original predisposition to the good”, and he held that the evil propensity yields only to a “revolution” in one’s mode of thought, which is a long way from trusting growth to happen once conditions are right.

Liberation Psychology: When the Problem Is Outside the Client

Liberation psychology starts from the view that a great deal of suffering is produced by social and political oppression, so therapy that treats only the individual risks adjusting people to the conditions that harm them.

The approach is closely tied to Ignacio Martín-Baró (1942 to 1989), a Spanish-born Jesuit with a doctorate in social psychology from the University of Chicago and vice-rector at the Universidad Centroamericana in San Salvador. According to a 2013 article by José María Gondra in The Spanish Journal of Psychology, his work aimed to “de-ideologize” El Salvador’s oppressed social classes, and it ended on 16 November 1989, when soldiers of the Atlacatl Battalion, an elite unit of the Salvadoran army, killed him, five fellow Jesuits, their housekeeper Elba Ramos and her 16-year-old daughter Celina on the campus, as the Romero Trust records. Where Epictetus would start with the client’s judgements, Martín-Baró started with the conditions that produced the distress and with those who profited from keeping them.

Where Philosophy Stops and Therapy Starts

Philosophy can supply the ideas behind a therapy, but a therapy also needs training, a relationship, an assessment of risk and some evidence that it helps, and books alone cannot provide those.

Reading Epictetus, Frankl or Yalom can help people make sense of what they are going through, and Ellis and Beck said openly that their methods drew on the Stoics. The clinical versions differ from a paperback in ways that matter: a therapist works with one specific person, assesses what is actually going on, adjusts the method and notices when something becomes dangerous. The evidence summarised above also belongs to the therapies as delivered by trained people, and says nothing about the effect of reading the Handbook on a train. When questions about death, freedom or meaning stop being interesting and start being unbearable, that is the point to talk to a professional, and if you are struggling right now, findahelpline.com lists free, confidential support services by country.

If liberation psychology made you curious about a psychiatrist who treated colonialism as a clinical problem, read C.M. Black’s post on Frantz Fanon, Marxist psychiatrist and father of decolonialism.