The Cahen-Hayoun Family

The name Hayoun belongs to the deep stratum of Jewish surnames of the Maghreb. Its presence is attested in the Judeo-Arab space that unites, beyond colonial borders, the communities of Morocco and western Algeria. The classical work by Abraham Laredo on the names of the Jews of Morocco places these forms within the vast North African onomastic tradition, where a single name can travel from one shore to the other according to exiles and alliances [Abraham I. Laredo, Les Noms des Juifs du Maroc].

The compound form Cahen-Hayoun deserves particular attention. The first element, Cahen — a graphic variant of Cohen — designates, in tradition, belonging to the sacerdotal caste of the Kohanim, the descendants of Aaron charged with the service of the Temple. The juxtaposition of a sacerdotal name and a Maghrebi name such as Hayoun is, in the Sephardic and Judeo-Maghrebi world, the sign of family alliances that oral memory preserves better than the archive. The historian's caution is required here: in the absence of notarial acts going far back, this reading remains that of a transmitted tradition, not that of a documented chain.

What the name already carries, however, belongs to a cardinal virtue of Judaism: the memory of the name itself as a sacred deposit. In a culture where one names the child in remembrance of an ancestor, the surname is not a simple administrative label but the thread of a transmission, the zakhor — "remember" — inscribed at the very heart of identity. In this, the Cahen-Hayoun lineage participates, like countless families of Israel, in this fidelity to the memory of generations that crosses the diaspora.

Oran was, until the middle of the twentieth century, one of the great Jewish cities of the Western Mediterranean. The community there was ancient and numerous, shaped by successive waves: indigenous Jews known as toshavim, refugees from the Iberian expulsion of 1492, families from neighboring Morocco, and notable families established over centuries of Spanish, Ottoman, and then French presence on these shores.

The Crémieux Decree of 1870 marked a decisive turning point: it granted collective French citizenship to the Jews of the Algerian departments, anchoring the Oran community to republican culture and its schools. It was within this framework that there formed, at the turn of the nineteenth and twentieth centuries, an Oran Jewish bourgeoisie at once attached to its tradition and open to French learning — the very milieu from which the intellectual formation of the Cahen-Hayoun lineage proceeded.

This dual belonging — to the Law of Moses and to the culture of the Enlightenment — constitutes one of the most profound traits of Oran Judaism. One finds in it, in embryo, the fruitful tension that would run through the entire work of the philosopher issuing from this lineage: that between Talmudic fidelity and rational exigency, between Jerusalem and Athens. The community of Oran, by cultivating together the synagogue and the lycée, embodied this virtue of implication in collective life and this love of learning that the Jewish tradition has never ceased to honor.

The year 1962, with Algerian independence, provoked the near-total exodus of the Jews of Oran toward metropolitan France. This rupture, experienced as a wrenching apart, was also — according to a recurrent motif in the history of Israel — the starting point of a new diaspora and a new intellectual fecundity. It was in post-exile France that the Cahen-Hayoun lineage was to bear its most visible fruit.

Maurice-Ruben Hayoun, born in Oran in 1951, is the figure who gives this lineage its place in the history of contemporary Jewish thought. Trained in the dual tradition of rabbinic and university learning, he became one of the principal French mediators of Jewish philosophy, language and culture, between Enlightenment Germany and the Maghreb of his origins.

His considerable body of work embraces the great moments of Jewish rationality. He devoted foundational studies to medieval philosophy, notably Jewish Medieval Philosophy and a comprehensive work on Jewish Philosophy, which place him in the lineage of great historians of the discipline such as Georges Vajda [Georges Vajda, Introduction à la pensée juive du Moyen Âge ; ref:5] and Colette Sirat [Colette Sirat, La philosophie juive au Moyen Âge selon les textes manuscrits et imprimés ; ref:8]. Through these works, he made accessible to the French-speaking public a continent of thought long reserved for scholars.

Hayoun did not confine himself to the Middle Ages. He explored Jewish modernity in Modern Judaism and devoted a work to Moses Mendelssohn, philosopher of the Berlin Enlightenment and figure of emancipation. This movement in his thought — from medieval Maghreb to Enlightenment Germany — reproduces, at the scale of a single body of work, the very trajectory of his Oran Judaism: to inherit tradition and test it by the measure of reason.

In this, Maurice-Ruben Hayoun expresses with brilliance one of the highest virtues that Israel has carried through the centuries: the contribution to Jewish thought and philosophical knowledge as a form of fidelity. Where others transmit through blood or through ritual, this lineage transmits through the book. The philosopher becomes, in a sense, the modern sofer — the scribe who copies and comments, so that the chain of tradition, the shalshelet ha-qabbala, does not break.

At the heart of Maurice-Ruben Hayoun's work stands a figure: Moses Maimonides (1138-1204), the Rambam, physician, jurist and philosopher, born in Córdoba and died in Egypt, summit of medieval Jewish thought. Two works in the corpus linked to this lineage bear witness to this: Maimonides or the Other Moses (1994) and an academic synthesis, Maimonides, published by Ellipses in 2009.

The very title of the 1994 essay — Maimonides or the Other Moses — condenses an ancient intuition of Jewish tradition, summarized by the adage: "From Moses to Moses, there has not risen one like Moses." The first Moses is the legislator of Sinai; the second, Maimonides, is he who, two millennia later, reordered all the Law in his great code, the Mishneh Torah, and reconciled the faith of Israel with the philosophy of Aristotle in the Guide of the Perplexed [Shlomo Pines, The Guide of the Perplexed ; ref:11].

In making himself the interpreter of Maimonides, Hayoun inscribes himself in an immense learned community, alongside scholars such as Herbert Davidson [Herbert A. Davidson, Moses Maimonides: The Man and His Works ; ref:9] or Kenneth Seeskin [Kenneth Seeskin, The Cambridge Companion to Maimonides ; ref:10]. His own contribution was to restore, in the French language, the coherence of a thought that makes of halakha — the conception of Jewish Law — not a mere body of prescriptions, but a rational architecture ordered toward the knowledge of God.

There is, in the very choice of Maimonides as the object of a lifetime of research, a virtue that tradition cherishes: the conception of Jewish Law as a work of reason and not of constraint, and the humility of the commentator who effaces himself before the master. The Thirteen Articles of Faith of Maimonides, on which one has been able to emphasize the theological turn they marked [David Encaoua, The Theological Turn of Maimonides' Thirteen Articles of Faith ; ref:12], remain at the heart of the liturgy of Israel — proof that the scholarly work of a Hayoun joins, beyond the university, the daily prayer of the people.

It is striking that the Cahen-Hayoun lineage, born in Oran, gave rise to a work that precisely connects the two poles of Jewish intellectual geography: medieval Andalusia and Enlightenment Germany. This coincidence between a family's history and the object of its most notable work invites a reading in which transmitted tradition and scholarly archive respond to each other.

Maurice-Ruben Hayoun was the translator and interpreter of the great Jewish rationalists. From Maimonides, the Andalusian exile in the Orient, to Moses Mendelssohn, the Berliner who remade for his time the gesture of a reason reconciled with faith, he traced a single and continuous line: that of Jewish philosophy as permanent dialogue with surrounding culture—Arab yesterday, German afterwards, French at last. His comprehensive work Jewish Philosophy and his studies on medieval thought made him the direct heir of the founders of the Wissenschaft des Judentums, the "science of Judaism" born in nineteenth-century Germany.

One measures here, with appropriate caution, how the singular destiny of an Oran family intersects the collective memory of Israel. The Jew of Oran, expelled from his native land in 1962, remakes in his own way the gesture of Maimonides fleeing Córdoba, that of so many exiles who, stripped of their soil, made knowledge their only portable homeland. The Jewish tradition names this virtue Torah as kingdom: when all is lost, study remains. The Cahen-Hayoun lineage, by making the book its heritage, embodies this response of Israel to exile.

This reading remains that of a probable intersection: nothing proves that the philosopher consciously connected his family geography to his objects of study. But the honest historian can at least observe the resonance—and see in it one of those discreet harmonies of which the history of diasporas is woven.

Every lineage is also judged by what it transmits beyond its most visible figure. The Cahen-Hayoun family, as it is known to us, is characterized above all as an intellectual Oran family — that is, an environment where the taste for study, the exigency of the letter, and respect for the book served as patrimony.

In the absence of published archives on earlier generations and descendants, prudence demands that we not embroider. What can be affirmed belongs to the order of plausibility: a family whose member devoted his life to the translation and commentary of great texts was almost necessarily inscribed in an environment where culture was a cardinal value. Oran Judaism, with its schools, its synagogues, and its learned bourgeoisie, offered precisely this soil.

The virtue that emerges here is that of transmission — not so much of material wealth as of knowledge. In the tradition of Israel, the father has the obligation to teach the Torah to his son, and the chain of masters and disciples constitutes the very skeleton of Jewish culture. That this lineage brought to the fore a teacher, an author, a transmitter, is not chance but the fulfillment of a deep aspiration: to make knowledge a living heritage.

Thus, even where the archive is lacking, memory suggests a continuity: that of a family which, from Oran to Paris, will have held that the highest wealth is that which is not lost in exile, because it is transmitted from generation to generation.

At the end of this journey, the Cahen-Hayoun lineage appears as a lineage of the book. Born in the Mediterranean Judaism of Oran, torn from its land by the upheavals of 1962, it gave France and Jewish culture one of its great interpreters of medieval thought, Maurice-Ruben Hayoun, who made Maimonides, Mendelssohn, and Jewish philosophy as a whole the object of a lifetime of study.

Of all the virtues that Israel has carried through the centuries, it is knowledge — Talmudic, philosophical, literary — and its transmission that this lineage will have, above all others, best expressed. Not knowledge as ornament, but knowledge as fidelity: the conviction that to comment on the masters, to translate them, to make them accessible, is a way of honoring the Covenant and prolonging the chain of generations. In this, the Cahen-Hayoun family joins the long procession of scribes, commentators, and philosophers who, from Cordova to Berlin and from Oran to Paris, made the understanding of texts the beating heart of the memory of Israel.

This Great Book leaves many pages open — those of the generations that the archive did not retain, those of generations to come. But it will have shown the essential: that a family can define itself less by what it possesses than by what it understands, and that a name inscribed on the frontispiece of a philosophy book is perhaps the most enduring of genealogies.