c. 872-950 CE
Philosophy and prophecy are two paths to the same truth — the philosopher grasps it through reason, the prophet through imagination for the masses.
Abu Nasr Muhammad al-Farabi was born around 872 CE in Farab (or Faryab), a district in the region of Transoxiana — the far northeastern edge of the Islamic world. His ethnicity is debated: Persian, Turkic, or possibly mixed. His father may have been a military commander. Details of his early life are scarce; he emerged from obscurity already learned.
He came to Baghdad, probably in his twenties, when the city was the world’s intellectual center. The Abbasid caliphate had sponsored massive translation projects, rendering Greek philosophy, science, and medicine into Arabic. Aristotle, Plato, Plotinus, Galen, Ptolemy — all were available to Arabic readers. Al-Farabi studied with the Christian Nestorian logicians who had preserved and transmitted this heritage. Under Abu Bishr Matta ibn Yunus, he mastered Aristotelian logic; under Yuhanna ibn Haylan, perhaps other disciplines.
He stayed in Baghdad for decades, teaching, writing, living simply. Stories paint him as ascetic: he owned little, slept on a mat, worked by lamplight in gardens at night. He never married, never sought wealth. His nickname “the Second Teacher” acknowledged that after Aristotle, no one had done more for logic and philosophy.
His project was synthesis. He wrote commentaries on Aristotle’s logic, paraphrases of Plato’s dialogues (including the Republic and Laws), and original treatises reconciling the two. His “Harmonization of the Opinions of the Two Sages, Plato and Aristotle” argued that their apparent disagreements were superficial; properly understood, they taught the same truths. More controversially, he argued that philosophy and prophetic religion also harmonised: the philosopher knows truth through demonstration; the prophet receives the same truth through imagination and transmits it through symbols and stories suited to ordinary people.
This had political implications. His masterwork, “The Principles of the Opinions of the Inhabitants of the Virtuous City,” reimagined Plato’s Republic for the Islamic world. The ideal ruler is the philosopher-prophet — one who grasps truth demonstratively and communicates it imaginatively. Muhammad was such a figure. The best regime is ruled by philosophers or their laws; inferior regimes fail by pursuing false goods (honour, wealth, pleasure) or by lacking rational guidance.
Around 942 CE, he left Baghdad for Syria, eventually settling in Aleppo at the court of Sayf al-Dawla, the Hamdanid emir and great patron of Arabic letters. He may have been fleeing political instability in Baghdad; he may have sought patronage for his work. At Sayf al-Dawla’s court, he was honoured but remained simple in his habits.
He died around 950 CE in Damascus. Some accounts say he was killed by bandits while travelling; others that he died peacefully. He was buried in Damascus, outside the Small Gate. His grave became a place of visitation for philosophers — pilgrimage to the Second Teacher.
"The philosopher grasps intelligibles through demonstration; the prophet grasps the same intelligibles through imagination and transmits them to the multitude through persuasion."
— On the relationship between philosophy and prophecy — the key to his political philosophy
"The virtuous city is one in which people aim at genuine happiness through cooperation, guided by a ruler who knows the truth."
— Principles of the Opinions of the Inhabitants of the Virtuous City — the Islamic Republic
"Happiness is the good sought for its own sake, never for anything else; it is the perfection of the human being."
— His ethics, following <a href="https://askthepolymath.com/philosopher/aristotle/" class="philosopher-link" data-philosopher-id="4869">Aristotle</a> Nicomachean Ethics
Al-Farabi’s philosophy begins with God — the One (al-Wahid), the First Cause, pure intellect thinking itself. From the One, through a process of emanation (a Neoplatonic idea absorbed into Arabic thought), flow ten intellects corresponding to the celestial spheres. Each intellect, contemplating its origin and itself, generates the sphere below it. The tenth intellect — the Active Intellect — governs the sublunary world and illuminates human minds.
This cosmology grounds epistemology. Human beings begin with potential intellect — capacity for knowledge. Through learning and the Active Intellect’s illumination, potential intellect becomes actual. The philosopher, at the highest stage, achieves conjunction (ittisal) with the Active Intellect — direct intellectual contact with the realm of pure forms. This is human perfection, the philosophical equivalent of mystical union.
The prophet achieves something parallel but different. Where the philosopher’s connection is purely intellectual, the prophet’s involves imagination. The Active Intellect overflows into the prophet’s imaginative faculty, producing vivid symbols, images, and stories that communicate truth in forms accessible to ordinary people. Philosophy and prophecy are thus two modes of the same truth: demonstrative and imaginative, elite and popular, philosophical and rhetorical.
This has political consequences. The ideal ruler is the philosopher-prophet — one who grasps truth demonstratively and communicates it imaginatively. The “virtuous city” (al-madina al-fadila) is ruled by such a figure or by laws established by such a figure. It aims at genuine happiness (sa’ada) — intellectual and moral perfection — and organises society to achieve it. Citizens occupy different ranks based on their capacities, each contributing to the whole like organs in a body.
Opposed to the virtuous city are ignorant cities (pursuing false goods), wicked cities (knowing the good but rejecting it), and errant cities (misunderstanding the good). Most actual cities are mixtures. The philosopher’s task is partly political: to found or reform cities toward virtue, using philosophy or its rhetorical and poetic shadows as circumstances require.
Al-Farabi’s logic was equally influential. He wrote commentaries on all of Aristotle’s Organon, developed the theory of syllogistic demonstration, and analysed the relationships between logic, language, and reality. His “Enumeration of the Sciences” classified all knowledge, creating a curriculum that shaped Islamic and later European education.