Industria (human ingenuity)

Industria (human ingenuity) names the intelligence by which characters read a situation and devise a means to obtain what they want or recover what they have lost. The Third Day turns that capacity into an organizing principle, but its stories complicate any simple praise of cleverness: a stratagem may depend on patience and observation, yet serve desire or fraud, and its success may rest on another person’s mistaken trust.

A principle made explicit

At the close of the Second Day, Neifile proposes a new subject for the company’s stories: people who, through diligence, acquire something greatly desired or recover a lost good. The company accepts her plan, with Dioneo retaining his privilege. After the Friday and Saturday pause from storytelling, the group moves to a new palace on Sunday, and the Third Day begins under Neifile’s governance with that theme announced as its rule. Ingenuity is therefore not merely a trait attached to an exceptional character; it shapes the day’s selection of plots, joining effort and desire through the question of how a desired outcome is achieved.

Neifile’s introduction to the day’s first story identifies a related mistake about human nature. Some people imagine that the nun’s veil extinguishes feminine desire, just as others suppose hard agricultural labor makes country workers dull of judgment. Her tale is offered to correct both assumptions. The contrast matters: ingenuity is not confined to a privileged social or intellectual class, and outward station or appearance cannot safely be treated as evidence that appetite or intelligence has disappeared.

Masetto’s performed muteness

Masetto of Lamporecchio’s plan begins with information gathered indirectly. Nuto, a former worker at a convent, complains that the nuns gave him little pay and constantly interfered with his gardening. He describes them as young and difficult to satisfy, and reports that the bailiff is looking for a replacement. Masetto listens, becomes intensely eager to take the position, but recognizes that his youth and appearance may make the convent refuse him. He conceals his true purpose from Nuto and reasons that, because the place is far away and no one there knows him, he can secure entry by pretending to be mute.

The disguise is a calculated answer to the convent’s expectations. Carrying an axe, Masetto arrives dressed as a beggar and uses gestures to ask for food, offering to chop wood in return. The bailiff feeds him and gives him logs Nuto could not split; Masetto finishes them quickly. He then cuts firewood in the coppice and brings it back on the convent’s ass. Strength and useful work make the performance credible before the deception has to do its larger work.

When the abbess asks who he is, the bailiff describes Masetto as a poor deaf-mute whom he has taken in out of charity. He recommends keeping him as a gardener, reasoning that the nuns need such a worker and need not fear that he will fool the young women. The abbess agrees, ordering shoes, an old hood, food, and kind treatment. Masetto overhears this assessment while sweeping the courtyard. The irony is structural: the belief that his supposed incapacity makes him harmless is precisely what enables him to enter. The story’s title announces the consequence of his successful access, as the nuns flock to lie with him; his ingenuity works by making others’ assumptions serve his concealed aim.

Reading desire and staging a response

The account of Ricciardo, surnamed Il Zima, presents ingenuity as a performance in speech. The story’s heading describes a bargain: Il Zima gives Messer Francesco Vergellesi a palfrey in exchange for permission to speak with Vergellesi’s wife. She keeps silent, but Il Zima answers himself in her person, and the effect follows in accordance with the answer he supplies. The available account emphasizes the formal device rather than its full circumstances: a one-sided exchange is made to resemble a dialogue, and the imagined reply becomes the means by which the plot advances. The maneuver turns silence from an obstacle into space that the speaker fills himself.

Ricciardo Minutolo’s stratagem depends less on impersonating a voice than on reading a particular vulnerability. A wealthy young man of noble birth, and himself married, Ricciardo desires Catella, who is married to Filippello Fighinolfi and loves her husband. His efforts to win her favor have failed. Knowing that Catella is jealous of Filippello, Ricciardo tells her that her husband will meet his own wife at a bathhouse the next day. Catella goes there believing she will find Filippello, but instead spends the encounter with Ricciardo. The plan succeeds because it joins knowledge of her jealousy to a carefully chosen false circumstance. Yet its success is not uncomplicated: the ingenuity belongs to the deceiver, while Catella’s trust and mistaken understanding are what make the deception work.

Observation, inference, and religious appearances

Abraham’s journey to Rome supplies a different kind of intelligence. At Jehannot de Chevigné’s urging, Abraham goes to the papal court; after observing its clergy, he returns to Paris with a judgment based on what he has seen. He reports gluttony, drunkenness, greed, and the buying and selling of sacred things and church offices. He is especially struck by the way corrupt practices are renamed: simony as procuration and gluttony as sustentation. His criticism is not simply an inventory of abuses; it attends to the gap between a respectable label and the conduct the label disguises.

Jehannot expects Abraham’s report to discourage conversion, but Abraham draws the opposite conclusion. If the church’s leaders appear to labor against the Christian religion, yet that religion continues to grow brighter and more widespread, Abraham reasons that its foundation must be the Holy Spirit rather than the virtue of its clergy. He asks to be baptized, receives the name Giovanni, and is taught the faith. The story thus makes discernment itself consequential: Abraham turns scandal into evidence by comparing what he observes with what, in his judgment, follows from it. Neifile frames the tale as an instance of divine benignity enduring the failings of those charged with bearing witness to it.

Deception, judgment, and the limits of a plan

Other supplied episodes sharpen the distinction between an effective stratagem and a worthy one. When Ferondo emerges from the tomb, pale after ten months without seeing the sky, he believes that the abbot’s prayers and those of Saint Benedict and his wife have delivered him from the pains of Purgatory and restored him to life. The abbot presents the return as a miracle, while Ferondo supplies further authority to the deception by telling the villagers stories about the souls of their dead relatives. His account shows how a false appearance can be sustained not by one performer alone but by the credulous interpretations that gather around it.

Fra Alberto’s impersonation of the Angel Gabriel ends differently. After he has been presented to a crowd in Venice as a wild man, his mask is removed and the assembled people recognize him. They shout abuse, throw filth at him, and continue to bait him until his fellow friars arrive, free him, and carry him away under a general outcry. The contrast with Masetto is pointed: concealment can secure access while it remains believable, but public recognition can turn the deceiver into the spectacle. The tale of Ser Ciappelletto offers a further warning about appearances and judgment: although he is described as the worst of men in life, after his death he is reputed a saint. The opening discussion distinguishes human judgment from divine judgment, cautioning against treating reputation as a transparent measure of character.

Across these episodes, ingenuity is recognizable not by a single moral value but by its operations: noticing what others overlook, anticipating how a belief can be used, and shaping words or appearances to change what happens next. Its outcomes remain sharply different. Masetto gains the access he sought; Abraham reasons toward a faith that he had resisted; Ricciardo’s success rests on Catella’s deception; and Fra Alberto’s disguise ends in exposure and public shame. The stories make intelligence consequential without making cleverness, by itself, a guarantee of virtue.