Intellect
Nous — 'intellect' or 'mind' — is the soul's highest power, and for some Greeks the very principle that orders the cosmos.
Nous, the Greek term for intellect, refers to the highest faculty of human cognition—the rational mind capable of grasping eternal truths and first principles directly, without need for logical reasoning. Aristotle, who developed this concept most systematically, distinguished nous from discursive reason (dianoia), arguing that intellect apprehends fundamental truths and definitions immediately, intuitively grasping what reasoning can only approach gradually. This power resides at the peak of the human soul's hierarchy.
Because intellect connects us to the divine and eternal, Aristotle concluded that exercising this faculty constitutes the best human life. A person who engages in contemplation through intellect lives the most divine existence available to mortals, achieving eudaimonia—human flourishing. The life devoted to intellectual activity surpasses mere pleasure-seeking or moral virtue alone because it aligns our nature with what is most essentially ourselves: our rational soul elevated toward the eternal.
Where this idea shows up
92 Greek sources·3 Jewish-canon citationsWhere to read it
- Anaxagoras· Clazomenae
- Fragmenta445 BCE
- Fragmenta370 BCE
- Theaetetus369 BCEPlato· Athens
- Memorabilia354 BCEXenophon· Athens
- Cyropaedia354 BCEXenophon· Athens
- Alcibiades 1348 BCEPlato· Athens
- Epinomis345 BCEPhilip of Opus· Athens
- Panathenaicus339 BCEIsocrates· Athens
- To Demonicus338 BCEIsocrates· Athens
- Analytica priora322 BCEAristotle· Chalcis
- Nicomachean Ethics322 BCEAristotle· Chalcis
- Metaphysics322 BCEAristotle· Chalcis
- Eudemian Ethics322 BCEAristotle· Chalcis
- De animalium motione322 BCEAristotle· Chalcis
- De partibus animalium322 BCEAristotle· Chalcis
- Magna Moralia322 BCEAristotle· Chalcis
- The Erotic Essay322 BCEPseudo-Demosthenes· Athens
- Problemata322 BCEPseudo-Aristotle· Chalcis
- De sensu et sensibilibus287 BCETheophrastus· Athens
- Metaphysics287 BCETheophrastus· Athens
- Fragmenta varia287 BCETheophrastus· Athens
- De Rerum Natura55 BCELucretius· Rome
- De Republica54 BCECicero· Formiae
- De Divinatione43 BCECicero· Formiae
- de Natura Deorum43 BCECicero· Formiae
- Tusculanae Disputationes43 BCECicero· Formiae
- Cicero· Formiae
- Catilinae Coniuratio43 BCESallust· Rome
- Bellum Iugurthinum41 BCESallust· Rome
- De Medicina50 CECelsus· Rome
- Institutio Oratoria95 CEQuintilian· Rome
- Discourses108 CEEpictetus· Nicopolis
- Plutarch· Chaeronea
- Plutarch· Chaeronea
- De sollertia animalium120 CEPlutarch· Chaeronea
- De Virtute Morali120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- De Genio Socratis120 CEPlutarch· Chaeronea
- De E apud Delphos120 CEPlutarch· Chaeronea
- De esu carnium I120 CEPlutarch· Chaeronea
- De fortuna120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- Platonicae quaestiones120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- De Defectu Oraculorum120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- De Iside et Osiride120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- De Tranquillitate Animi120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- Quaestiones Convivales120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- De Superstitione120 CEPlutarch· Chaeronea
- Conjugalia Praecepta120 CEPlutarch· Chaeronea
- Plutarch· Chaeronea
- Consolatio ad Apollonium120 CEPseudo-Plutarch· Chaeronea
- De liberis educandis120 CEPseudo-Plutarch· Chaeronea
- Ad Se Ipsum170 CEMarcus Aurelius· Vindobona (Vienna)
- Alexander180 CELucian of Samosata· Samosata
- Adversus Mathematicos190 CESextus Empiricus· Alexandria
- Pyrrhoniae Hypotyposes210 CESextus Empiricus· Alexandria
- Deipnosophistae230 CEAthenaeus of Naucratis· Naucratis
- Plotinus· Rome
- Boethius· Rome
- Guide for the Perplexed1190 CE
- Ohr Hashem1399 CE
- Abarbanel on Torah1505 CE