Let us pause to draw together the threads of the preceding lessons before proceeding to the new circumstances of our own century. What general view of history emerges from the analysis we have conducted?

First, we identified a set of facts that, in the most ancient societies, prevented the full establishment of liberty and property. The numerous hazards of production, the extreme precariousness and meagerness of results, and the very conditions of productive activity, notably hunting, which required vast territories incompatible with small private property, all conspired to make freedom and property more a distant aspiration than a concrete reality.

Then we identified the facts that permitted emancipation: the birth of agriculture, which introduced peaceful production and the accumulation of surpluses; the multiplication of exchanges made possible by greater resources; the emergence of contractual relations, introducing interactions based on mutual agreement rather than force. From these material transformations arose new ideas and new possibilities for human organization.

All national and world histories can be analyzed through this lens, and it is a profoundly important, though regrettably neglected, approach. The conventional narrative of history focuses on the conquest and transmission of power: the rise and fall of dynasties, the birth of monarchies, the succession of political regimes. This has little real interest. What matters most is the gradual conquest of freedom: how it advances, why it advances, and what drives it forward.

Ancient societies, those of Antiquity and the Middle Ages, were organized differently precisely because their production techniques differed radically. Political systems were not arbitrary impositions; they were responses to material circumstances. Several major transitions mark this progression: the beginnings of agriculture and private property, the passage from slavery to serfdom and from serfdom to regulated labor (an uneven transition, accomplished with considerable difficulty in some societies but proceeding century after century), the birth of small-scale industry, the great inventions (the steam engine above all), and the discovery of new continents.

Each of these transformations opened markets and created the conditions for competition. Without roads, without railways, without the discovery of other peoples and other lands, the world remained small, without communication, without competition of ideas or competition of products. One lived on a tiny market, under both political and economic domination, and suffered the full force of natural hazards, because commerce, which enables the balancing of agricultural outcomes across regions and seasons, did not exist.

The Enlightenment movement represents, in our view, one of the most significant moments in this history. It was the emergence of new ideas that found their application precisely because material conditions had changed. The thinkers of this epoch, the Physiocrats, Turgot in particular, and Condorcet, anticipated an ever-increasing progress of humanity. This notion of perfectibility of the human species led them to conceive of institutions, and above all a practice of liberty, that would be far more ambitious than anything previously attempted, because freedom was now increasingly imposed by new circumstances, and its practical utility was making itself felt.

Consider the contrast with the Middle Ages. In the medieval period, free competition and the freedom of prices could reasonably be considered impractical. The baker in a small town had a reserved market; one could not obtain bread from a competitor several kilometers away. For many goods, even agricultural ones, there was simply no alternative source, and producers consequently exercised a domination over consumers that the circumstances of the time made almost inevitable. In the 18th century, the Physiocrats observed the birth of world trade, particularly in agricultural commodities, and demonstrated that these new circumstances demanded free trade, which would allow prices to reach equilibrium and goods to be obtained at the lowest cost.

The French example of the 18th century illustrates, with painful clarity, the great necessity of harmonizing ideas with facts. The philosophers of the Enlightenment electrified the intellectual elite with their ideas, and Turgot, as minister, attempted sweeping reforms. But the fundamental problem was the impossibility of aligning new ideas with social realities without passing through violent revolution. How could an enlightened public opinion be formed without a free press, without channels through which ideas could reach the common people?

Normally, reforms and public opinion work together: gradual changes, guided by informed judgment, allow ideas to be peacefully reconciled with facts, extending freedom because the new circumstances both impose and permit it. Revolutions produce enormous violence and tend to impose far more change than public opinion is prepared to absorb. This explains the frequent and bitter reversals that follow revolutionary periods: the population is not ready for everything the revolution demands.

The patient work of gradual reform is therefore preferable. It allows societies to embrace greater freedom when the time truly permits, without the destructive convulsions of violent upheaval. This is one of the essential conclusions of our historical analysis, and it prepares us for the question we will address in the next lesson: what are the specific circumstances of our own century, and why are they the most favorable to liberty that have ever existed in the history of humanity?