Study sheet: Thomas Aquinas and Medieval Philosophy

📋 Course Outline

1. The Medieval Intellectual Context
2. Scholasticism and Its Aims
3. Aquinas’s Life and Influences
4. Aristotelian Christian Synthesis
5. Philosophy, Theology, Faith, and Reason
6. Aquinas’s Five Ways
7. Causes and Scientific Knowledge
8. Aquinas on the Soul

📖 1. The Medieval Intellectual Context

★ Must-know

• The Middle Ages began in the 5th century, lasted for about 1000 years, and were characterized by the fall of the Roman Empire and the rise of the Roman Catholic Church.

• The Black Death decimated the population of Eurasia from 1347–1351 CE, causing an estimated 75–200 million deaths and wiping out about half of Europe’s population in four years.

Further detail

• During the Middle Ages, knowledge in Europe was generally limited to literate priests and monks because education was mainly associated with the clergy and religious institutions.

• Arabic and Persian scholars preserved and translated Greek philosophical works and incorporated them into Islamic culture from the 6th century onwards.

💡 Memory Hook

Europe’s restricted learning contrasted with thriving Chinese, Japanese, Arabic, and Persian cultures

📖 2. Scholasticism and Its Aims

🔑 Key Concepts & Definitions

• Scholasticism : a philosophical approach that stemmed from monastic schools and was renowned for rigorous dialectical reasoning

★ Must-know

📌 One aim of scholasticism was to integrate Greek philosophy into the Christian religion.

Further detail

• The Crusades were ostensibly intended to safeguard Christian pilgrimage to Jerusalem but were also pragmatically an attempt to unite Europe against the Islamic Empire.

💡 Memory Hook

Monastic schools → dialectical reasoning → integration of Greek philosophy with Christianity

📖 3. Aquinas’s Life and Influences

★ Must-know

• St Thomas Aquinas lived from 1225 to 1274 CE and was born into Italian nobility near Naples.

• 🔄 Aquinas’s intellectual formation proceeded through:

  1. education at an abbey
  2. study at the University of Naples
  3. entry into the Dominican order
  4. study at the University of Paris
  5. influence from Albert the Great

Further detail

• Albert the Great intellectually influenced Aquinas by grounding Christian faith on reason and by presenting Aristotle as the greatest philosopher.

• Aquinas’s major written works included the Summa Contra Gentiles and Summa Theologica.

💡 Memory Hook

Abbey education → Naples → Dominicans → Paris → Albert the Great

📖 4. Aristotelian Christian Synthesis

★ Must-know

📌 Aquinas held that the universe could have existed forever while species such as humans and animals nevertheless had a beginning because God created the universe.

• Aquinas adopted Aristotelian metaphysical ideas including:
  • motion
  • individual substance
  • potentiality and actuality
  • abstraction

Further detail

• Aquinas’s natural philosophy was rationally demonstrable without depending solely on faith and was philosophically founded on Aristotelian philosophy.

• Aquinas made Aristotle’s account of sense perception and intellectual knowledge his own and based his moral philosophy closely on Aristotle’s teaching.

💡 Memory Hook

Aristotle: an eternally existing universe; Aquinas: a universe created by God

📖 5. Philosophy, Theology, Faith, and Reason

📝 Essential Points

📌 Philosophy begins with sense perception, rises through general concepts by abstraction, and reaches the highest principle, the first cause identified as God, whereas theology begins with faith in God and interprets things as God’s creatures through revealed knowledge from the Bible.

📌 Philosophy discovers truths by natural reason alone, whereas theology can disclose truths that natural reason cannot discover and that are revealed by faith.

📌 Aquinas held that faith and reason cannot genuinely conflict because both concern truth, although faith is superior to reason because all truth can be known by faith.

• The preambles of the faith are truths about God apprehensible by reason apart from revelation, including that God exists and that there is one God.

• The articles of faith are truths about God whose apprehension requires divine grace, such as the doctrine of the Trinity.

💡 Memory Hook

Philosophy rises from sense perception, whereas theology begins with faith in God

📖 6. Aquinas’s Five Ways

★ Must-know

• Aquinas’s five ways argue from observed effects or features of the world toward God as their ultimate cause or explanation.

• The argument from motion claims that changing things are changed by something else, that an infinite chain of changers is impossible, and that there must therefore be an unmoved changer understood as God.

• The argument from causation claims that nothing can cause itself, an infinite chain of causes is impossible, and there must therefore be an uncaused cause understood as God.

Further detail

• The argument from contingency claims that because contingent things can cease to exist, there must be an imperishable necessary being understood as God.

• The arguments from degrees and final cause infer God respectively from standards of goodness or truth and from the regular behavior of non-intelligent objects that requires intelligent direction.

💡 Memory Hook

Motion → causation → contingency → degrees → final cause

📖 7. Causes and Scientific Knowledge

🔑 Key Concepts & Definitions

• Four Causes : Aristotle — The four causes of a physical object or event are its material cause, formal cause, final cause, and efficient cause.
• Material Cause : Aristotle — what a physical object is made of
• Final Cause : Aristotle — the end, goal, purpose, or function of a physical object
• Formal Cause : Aristotle — what a physical object is
• Efficient Cause : Aristotle — what brings or conserves a physical object in being

📝 Essential Points

📌 Scientific knowledge requires knowing all four causes of an object or of the kind to which it belongs.

💡 Memory Hook

MEFE: Material, Efficient, Formal, and Final causes

📖 8. Aquinas on the Soul

📝 Essential Points

📌 Aquinas held that the soul and body interact but are constituted by different substances, a form of dualism that departs from Aristotle’s materialism.

📌 Aquinas held that the soul can continue living after the body has died.

💡 Memory Hook

Unlike Aristotle’s materialism, Aquinas treats soul and body as different substances

📊 Synthesis Tables

Faith, Reason, and Knowledge

Aspect	Philosophy	Theology
Starting point	Sense perception	Faith in God
Method	Natural reason and abstraction	Revealed knowledge and the Bible
Scope	Some truths about God	Truths exceeding natural reason
Example	God’s existence	The Trinity