Mozi: The Geek Engineer from 2,500 Years Ago, and the Logical Foundation of China's 'Hard Tech'

On August 16, 2016, China launched the world's first quantum science experiment satellite. It was named "Mozi (Micius)".

An experiment about light, named after the person from 2,500 years ago who explained how light propagates. This naming is not just a tribute; it is a relay of logic.

Mozi is the most underrated "systems engineer" in Chinese history. He was the first person to use engineering thinkingto solve social problems, define fairness withlogical rigor, and explore natural laws with experimental methods.

In Mozi, we can find three core logics of modern China.

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Part One: The "Commented-out" Code: The Rise and Silence of Mohism

Mozi, also named Di, lived approximately from 468 BC to 376 BC. He came from humble origins—possibly a descendant of the noble Muyi clan of the Song state, but by Mozi's generation, the family had declined into commoners. Sima Qian referred to him as a "minister of Song," but this was likely an honorary sinecure.

More unique was Mozi's identity as a craftsman. He was skilled in mechanical manufacturing and could design various city-defense devices. The Mo Jing (Mohist Canon) records extensive knowledge of optics, mechanics, and mathematics, earning him the title "originator of Chinese scientists" (Joseph Needham's assessment).

Mozi studied Confucianism in his early years but ultimately "rejected the ways of Zhou and adopted the governance of Xia," establishing the Mohist school. The reason was simple: Confucian rituals were too cumbersome, lavish funerals harmed the living, and love was hierarchical—all detrimental to the common people.

Mohism rose rapidly. By the mid-Warring States period, "all discourse under heaven belongs either to Yang or to Mo." Han Feizi said, "The prominent schools of the age are Confucianism and Mohism." Mohism was not just an academic group but a tightly organized armed pacifist group: its highest leader was called the "Grand Master (Ju Zi)," members were called "Mohists," and they had to be prepared to "enter fire and tread on blades, facing death without turning back."

But Mohism's fate in Chinese intellectual history is ironic—it was "commented out."

During Qin Shi Huang's burning of books and burying of scholars, Mohism, due to its organizational form (armed, opposing authority), became a target. After Emperor Wu of Han "elevated Confucianism alone," Mohism was completely marginalized. For two thousand years, Confucianism became the "official code," while Mohism's "hardcore code" emphasizing equality, logic, and technology was deeply suppressed in the folds of history.

It wasn't until the late Qing and early Republican era, when Liang Qichao and Hu Shi rediscovered Mohist thought, that this "commented-out code" was reactivated. The rise of modern China is, in essence, a system reload of the Mohist spirit.

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Part Two: Three Major Technological Logics: Mozi's "Operating System"

2.1 Technology as a Firewall for Justice: Non-Aggression

Mozi's core tenet is "non-aggression," but the means to achieve peace is neither moral preaching nor appeasement; it is technological counterbalancing.

The story of "Stopping Chu from Attacking Song" recorded in Mozi·Gongshu is famous: The Chu state prepared to attack Song, and Gongshu Ban built siege ladders for them. Mozi "traveled ten days and ten nights" to reach Chu and engaged in a sand table simulation with Gongshu Ban—"Nine times Gongshu Ban set his offensive machines in motion, nine times Mozi repelled them"—all of Gongshu Ban's attacks were thwarted. Mozi said: Even if you kill me, my three hundred disciples are already in Song with defensive devices ready for battle. The King of Chu had to give up.

Logical Core: "Non-aggression" is not cowardly pacifism but "defensive deterrence."If I can make the cost of your attack too high to bear, peace is achieved.Mohist Spirit vs. Knightly Spirit:The defensive logic of the Western Middle Ages often carried connotations of "honor" and "territory"—knights fought for land and honor. But Mozi's defensive logic was purely"technological defense":

• A knight says: "This is my territory; it shall not be violated!"
• A Mohist says: "You cannot break in; there's no need to attack."

Mozi did not occupy; he only fortified. This defensive philosophy of "only defend, never attack" aligns with later Chinese geopolitical strategic thinking.

Modern Projection:From the "Two Bombs, One Satellite" to quantum communication encryption, China's obsession with "hard tech" is essentially a modern version of Mozi's logic:using technology to build impenetrable barriers. The naming of the "Mozi" quantum satellite in 2016 is precisely a tribute to this logic—quantum communication is the digital-age version of "defensive deterrence."

2.2 System-Level Fairness Protocol: Inclusive Love

"Inclusive love" is often misinterpreted as universal fraternity. But for tech people, a cooler translation is: Universal Connectivity with Equal Priority.

Mozi's logic is: Social turmoil stems from systemic losses caused by "bias" and "selfishness." If everyone sets different "weights" based on closeness or distance, transaction costs rise sharply.

Technological Perspective: Mozi's ideal society was a flattened, decentralized network. Every node (person) should enjoy the same "communication priority." This resonates deeply with the "trustless collaboration" of blockchain.

2.3 Performance First: Utilitarian Principles

Mozi was the first person in Chinese history to explicitly oppose "empty rituals". He used the "Three Tests" to evaluate policy effects: base on the ancient sages, examine the people's will, and observe the practical benefits. This is a logic of "practice testing truth," predating Peirce's pragmatism by two thousand years.

Mozi's "frugal economics" is hardcore: Lavish funerals and prolonged mourning for three years—how much grain is lost? How much labor? How many burial objects? What benefit does it bring to the state? Institutions without practical value are system garbage.

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Part Three: Mozi's Technological Legacy: The World's Earliest Work on Optics

The Mo Jing compiled by Mozi and his disciples is the world's earliest work on geometric optics (over a century earlier than Euclid):

• Rectilinear propagation of light: "Light's illumination is like an arrow's flight."
• Pinhole imaging: The world's first experimental record.
• Definition of force: "Force is what makes form vigorous."
• Lever principle: Almost simultaneous with Archimedes.

Joseph Needham called Mozi the "saint of science." Mohist logic emerged almost concurrently with Aristotelian logic: one emphasized analogy (practical orientation), the other emphasized deduction (rational system)—both logics have their merits, but Mohist logic was lost during the Han Dynasty, a great loss to Chinese intellectual history.

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Part Four: Mozi's "Logical Revival"

Two thousand years after Mohism's decline, it is undergoing a "system reload":

Quantum Communication (Mozi Satellite): Using technological means to build "absolute security"—the digital version of Mozi's "defensive deterrence."

New Energy Revolution: Using technology to solve problems, not empty ideological talk—the industrial version of Mozi's "utilitarian principles."

"Community with a Shared Future for Mankind": Equal, mutually beneficial, win-win cooperation among nations—the diplomatic version of Mozi's "equal priority universal connectivity."

Mozi's legacy tells us: A civilization's dignity depends not only on how many poems and books it has read, but also on how many "shields" it can manufacture.

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Part Five: Conclusion: The Millennial Transmission of Geek Spirit

Western readers are familiar with Confucius and Laozi, but Mozi is the Chinese sage closest to the modern technological spirit.

Positions of the three sages:

• Confucius defined the relationships between "social components"—hierarchy and harmony.
• Laozi defined the laws of "system operation"—compliance and balance.
• Mozi provided the toolkit for "protecting the system" and "optimizing efficiency"—technology, logic, practicality.

Mohism was suppressed for two thousand years, but now it is re-blossoming in the 21st century.

From the Warring States wooden kite to the quantum satellite, the logic has never ceased flowing.

Naming the satellite "Mozi" is not just a tribute; it is a declaration: In this world full of uncertainty, we will continue using technology to build that civilization system of "inclusive love, non-aggression, and efficient collaboration."

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Mohist thought was once a "commented-out" segment of code in China, and the rise of modern China is essentially the reactivation of this "hard-tech code."

Confucius defined the relationships between "social components," Laozi defined the laws of "system operation," and Mozi provided the toolkit for "protecting the system" and "optimizing efficiency."

If you don't read Mozi, you cannot understand China's somewhat "geeky obsession" with technological sovereignty.