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The 90 pages that link to Thomas Aquinas, each with the reason it gives.

• AristotleRelated: His synthesis became one of the most influential Christian interpretations of Aristotle.

• ScholasticismRelated: His Summa Theologiae is a defining example of mature scholastic synthesis.

• AristotelianismRelated: His synthesis made Aristotelian concepts central to influential traditions of Catholic philosophy.

• Just war theoryRelated: His conditions—authority, just cause, and right intention—became a durable framework.

• University of ParisRelated: He studied and taught at Paris during key periods of his career.

• Gospel of MatthewRelated: His biblical commentaries include an influential exposition of Matthew.

• AvicennaRelated: Aquinas drew on Avicenna’s distinction between essence and existence while challenging parts of his system.

• MetaphysicsRelated: His account of being and divine existence became a major scholastic framework.

• Christian ethicsRelated: His treatment of natural law and virtue remains a major framework for Christian ethical reasoning.

• Divine providenceRelated: Aquinas treated providence as God’s ordering of all things toward their ends.

• Natural theologyRelated: His Five Ways became enduring examples of arguments from reason and observation.

• Natural rightsRelated: Aquinas’s natural-law account linked human reason and moral duties to divine law.

• Christian theologyRelated: His work exemplifies a major medieval effort to reconcile faith and reason.

• ChristologyRelated: His synthesis shows how medieval theology developed classical Christological doctrines.

• Sexual ethicsRelated: His natural-law framework became a major source for arguments about sexual purposes.

• AverroesRelated: Aquinas engaged Averroes’s interpretations while rejecting some of his conclusions about intellect.

• Divine simplicityRelated: His account of divine attributes and pure act became a central formulation of simplicity.

• BoethiusRelated: Aquinas later examined Boethius’s arguments about providence, eternity, and divine knowledge.

• Christian apologeticsRelated: His arguments demonstrate a systematic approach to defending claims about God and revelation.

• ConscienceRelated: He distinguished conscience as an act of applying moral knowledge from the principles behind it.

• TeleologyRelated: His fifth way reasons from the directed behavior of natural things to divine intelligence.

• Aristotelian cosmologyRelated: His synthesis helped transmit Aristotelian accounts of the cosmos through Latin scholastic education.

• Immaculate ConceptionRelated: His influential position illustrates the theological disagreement that preceded the definition.

• Anselm of CanterburyRelated: Aquinas later rejected the claim that Anselm’s reasoning establishes God’s existence for us.

• Cosmological argumentRelated: His arguments from motion, efficient causation, and contingency became influential cosmological forms.

• Catholic theologyRelated: His works remain major models of systematic Catholic theology.

• Analogy of beingRelated: Aquinas gives a systematic account of how names apply analogically to God and creatures.

• Doctrine of double effectRelated: His discussion of self-defense supplied the doctrine's foundational example.

• PrudenceRelated: Aquinas treated prudence as the virtue that directs the other moral virtues.

• SimonyRelated: He analyzed simony as a sin against the reverence due to spiritual goods.

• TranscendenceRelated: Aquinas argues that God exceeds creation while remaining its sustaining cause.

• TransubstantiationRelated: He gave the doctrine its influential scholastic explanation through substance and accidents.

• Albertus MagnusRelated: Aquinas studied under Albertus in Paris and Cologne and became his most influential pupil.

• Philosophy of religionRelated: His arguments for God became central examples of natural theology.

• Seven Deadly SinsRelated: His account explains how particular sins arise from the capital vices.

• Christian philosophyRelated: His synthesis became a major model for reconciling philosophical inquiry with Christian belief.

• Classical theismRelated: His account of God’s existence, attributes, and causality became a central classical formulation.

• CommentaryRelated: His commentaries on Aristotle and scripture exemplify medieval scholarly interpretation.

• EnvyRelated: Aquinas defined envy as sorrow at another's good insofar as it seems to diminish one's own standing.

• Sacramental theologyRelated: He gave a systematic account of sacramental signs, causes, and effects.

• Sexual moralityRelated: His natural-law reasoning shaped later Catholic judgments about sexual acts.

• Soul (spirituality)Related: Aquinas argued that the rational soul can subsist after bodily death while remaining ordered toward the body.

• Religious ethicsRelated: His natural-law account remains a formative Christian approach to moral reasoning.

• SchadenfreudeRelated: Aquinas treats pleasure in another’s evil as a form of envy in his account of the passions.

• Systematic theologyRelated: His Summa theologiae became a landmark model of ordered doctrinal exposition.

• God the SonRelated: His account gives a detailed philosophical treatment of the Son’s eternal relations and incarnation.

• Meister EckhartRelated: Aquinas represents the scholastic Dominican tradition in which Eckhart was trained and worked.

• Potentiality and actualityRelated: Aquinas used actuality and potentiality in arguments about change and existence.

• Teleological argumentRelated: His fifth way argues from the goal-directed behavior of natural things to an intelligent governor.

• ApologeticsRelated: His arguments illustrate the use of philosophical reasoning in Christian defense.