Pleonexia
The vice of wanting more than your fair portion — the root cause of injustice, tyranny, and war in Greek political thought.
The Meaning of Pleonexia
Pleonexia means wanting more — specifically, desiring more than one's fair share at others' expense. Plato identified it as the fundamental cause of injustice: the unjust person is the one driven by pleonexia, taking from others to aggrandise themselves. Thucydides diagnosed pleonexia as the engine driving Athens's imperial expansion, culminating in the disastrous Sicilian Expedition — the city's collective greed overriding strategic reason. The oligarchs who overthrew democracy did so from pleonexia; the demagogues who led the Assembly astray appealed to it. Aristotle distinguished pleonexia from mere desire: it is specifically the desire to take what rightfully belongs to others, making it inherently relational and antisocial. In mythology, pleonexia drives Tantalus (who stole divine food), Erysichthon (whose insatiable hunger consumed everything including himself), and Midas (whose golden touch turned even food inedible). Each myth demonstrates the same lesson: wanting everything means losing everything.
Fun Fact
Thucydides diagnosed Athens's downfall as pleonexia — the imperial city that wanted everything ended up losing its empire.
Words We Inherited
English words and phrases that trace back to this myth. See our full guide to English words from Greek mythology.
Explore Further
Hubris
💭 conceptThe overstepping that invites divine punishment
The supreme Greek sin of overstepping one's mortal bounds, degrading others, or presuming equality with the gods.
Koros
💭 conceptethics, mythology
Satiety or excess — the dangerous state of having too much, which leads to hybris and then to ate and destruction in the Greek moral cycle.
Tantalize
💭 conceptTemptation, frustration, torment by proximity
To torment with something desired but just out of reach, from King Tantalus and his eternal punishment.
Enantiodromia
💭 conceptphilosophy
The tendency of extremes to reverse into their opposites — the principle that things carried to their limit swing back toward what they denied.
Phthonos
💭 conceptSpirit of envy and jealousy
The personification of envy and jealousy who punished those who had too much happiness or good fortune.
Divine Justice
💭 conceptEthics
The principle that the gods punish wrongdoing and uphold moral order in the cosmos
Eleos
💭 conceptEthics and Emotion
The Greek concept of mercy and compassion, personified as a god and central to Athenian civic identity.
Eros
💭 conceptThe primordial force of desire that drives all creation
In Hesiod's cosmogony, Eros was not a cherub but a primordial force — the desire that compels all things to come together and create.
Promethean
💭 conceptLanguage and ambition
An English adjective meaning daringly creative, rebellious, or boldly innovative, derived from the Titan Prometheus who stole fire from the gods and gave it to humanity
Moira
💭 conceptThe concept of allotted portion and destiny
The fundamental Greek concept that each person receives an allotted portion of life, and even the gods cannot exceed it.
Hippolytus and Phaedra
💭 conceptNarrative
A tragedy of forbidden desire, false accusation, and divine cruelty destroying an innocent young prince
Creation of Man
💭 conceptNarrative
The mythological accounts of how humanity was fashioned from clay and endowed with life by the gods