Debt and Promise

"Fides is a word that stands by its word." — Cicero, De officiis, I, 7.

In Roman practice there was a notion of fides — at once "faith," "trust," and "fidelity to one's word." It was not a moral addition to the economy; it was its foundation. Without fides neither credit, nor hiring, nor a trade alliance was possible. Cicero in De officiis writes: a state in which fides has collapsed dissolves faster than one in which the laws have collapsed — because the laws stand on the trust of their observance, not the reverse.

The modern economy has unlearned this language. Debt became a financial instrument, the promise a marketing one. Between them appeared a fracture which regulators try to fill with fines, audit, and compliance, but this is a technical treatment of a fundamentally ethical disease.

Contract versus fides

In Roman logic the contract follows from fides, not the reverse. If you gave your word, it binds, and the contract merely makes the terms explicit. Modern logic is reversed: the contract binds because it was signed; the spoken word is worth nothing until written. This is convenient for a scalable economy but leaves a vast layer of obligations without protection — because not everything that matters can be written down.

Partner relationships, brand reputation, promises to customers, internal culture — all rest on fides, not on contract. When fides weakens, companies start substituting an endless compliance apparatus for it, and it does not work: the number of rules grows, trust falls. Cicero would have said: you are treating the symptom, not the disease.

ESG as an attempt to recover fides

ESG — environmental, social, governance — is rightly accused in much of its criticism of becoming the new compliance without changing behaviour. But the right intuition stands at the core of the movement: business gives society promises (not to pollute, not to exploit, not to mislead), and these promises must be binding, not marketing.

The best ESG practices restore the element of fides: the obligation is public, measurable, and non-performance carries a reputational, not only legal, cost. The worst turn it into a new form of greenwashing, in which promises are made loudly while enforcement of them is diffuse. Cicero would have drawn a clear line between the two.

Brand trust as capital

In corporate finance, brand trust is the only intangible asset that accumulates slowly and is lost quickly. Decades of careful work build billions of value; one scandal cuts that value in half. The asymmetry is the economic reflection of fides. Cicero would have noted: reputation is like virtue — lost in an instant, restored over years, often not restored at all.

This is why companies that understand the long game treat promises as debt. They said it, they did it. They did not, they openly admitted and compensated. That is fides in corporate form.

Where this meets debt in the literal sense

Financial debt is the cleanest form of promise. When I take a loan, I promise to repay within a specified term and in a specified amount. If I do not, the consequences touch not only me but the system of trust as a whole. Every default makes the next loan slightly more expensive for everyone else, because fides has slightly sagged.

This is not rhetorical exaggeration. The financial crises of 2008 and later are largely crises of fides: it was discovered that the promises on which the system stood were not backed by reality. After them, recovery came not through technical regulation (though there was that too), but through the slow recovery of trust. And it took years.

Trust is a currency without printing-press inflation, but with instant devaluation from a single broken fides. That is why it is expensive and that is why it is rarely counted.

What "honestly keeping a promise" means

Cicero distinguished three levels. First, literal performance: you did what you said. Second, in spirit: you did what you said in the spirit in which you said it. Third, in context: if the situation has changed so that literal performance no longer serves the purpose for which the promise was given — renegotiation, not silent retreat.

Most violations of fides happen at the second and third level, not the first. Literally not breached; in spirit, breached. That is what good corporate reputation catches and bad reputation misses.

Silent fides

Beyond public ESG commitments there are silent fides — promises a company does not write down but on which the market relies: "we will support the product for the next five years," "we will not raise prices without warning," "we will not sell the company to a strategic competitor." These silent fides have no contract, but breaking them carries a reputational cost higher than breaching formal ones. Ancient ethics regarded them as the core of commercial honour.

What to do

Before giving a promise — to a customer, partner, employee, market — ask: am I prepared to keep it two years from now, in any scenario? If not, do not promise, or promise with a condition. Every broken promise is a tiny deposit into the erosion of fides. Accumulated over five years, such deposits turn into a reputational crisis. Cicero would have said: it is cheaper to be silent than to promise and not perform. And he was right: silence does not destroy trust; a broken promise does.