2.8.1
Aquinas' Theological Approach
Aquinas' Theological Approach
Aquinas' Theological Approach
Thomas Aquinas, a 13th-century theologian, integrated faith and reason in his moral philosophy.


Exploring Aquinas' theological approach
Exploring Aquinas' theological approach
- Aquinas believed that humans, created in God's image, possess reason (ratio).
- Aquinas argued that reason guides humans towards moral understanding and decision-making.
- Aquinas' theology includes concepts like synderesis and conscientia within moral reasoning.


Ratio and synderesis
Ratio and synderesis
- Aquinas defined ratio as the divine reason placed in every person, enabling moral understanding.
- Synderesis is an innate principle directing humans towards good and away from evil.
- Aquinas described synderesis as infallible, always orienting individuals towards correct action.
- Both ratio and synderesis reflect God's influence on human moral decisions.


Conscientia and moral judgment
Conscientia and moral judgment
- Conscientia refers to a person's reason making practical moral judgements in specific situations.
- Aquinas viewed conscientia as applying synderesis and ratio to concrete moral dilemmas.
- Conscientia involves evaluating actions and ensuring they align with God's moral order.
- Aquinas acknowledged that conscientia can make mistakes, emphasising the importance of moral education.


Vincible and invincible ignorance
Vincible and invincible ignorance
- Vincible ignorance occurs when a person lacks knowledge they are responsible for obtaining.
- Aquinas believed vincible ignorance does not excuse wrong actions, as one should have better informed themselves.
- Invincible ignorance involves lacking knowledge without fault or opportunity to learn it.
- Aquinas held that invincible ignorance could excuse an individual from moral culpability.


Example of Aquinas' moral theory
Example of Aquinas' moral theory
- Imagine a person considering lying.
- Ratio helps them understand truthfulness as a divine value.
- Synderesis inclines them naturally towards honesty, recognising lying as evil.
- Conscientia applies these principles when deciding not to lie in a Specific situation.
- If they remain ignorant of consequences despite effort (invincible), guilt is lessened; otherwise, they bear more responsibility (vincible).
1Philosophy of Religion
1.1Ancient Philosophical Influences: Plato
1.2Ancient Philosophical Influences: Aristotle
1.3Ancient Philosophical Influences: Soul, Mind, Body
1.4The Existence of God - Arguments from Observation
1.5The Existence of God - Arguments from Reason
1.6Religious Experience
1.7The Problem of Evil
1.8The Nature & Attributes of God
1.9Religious Language: Negative, Analogical, Symbolic
2Religion & Ethics
2.1Natural Law
2.2Situation Ethics
2.3Kantian Ethics
2.4Utilitarianism
2.5Euthanasia
2.6Business Ethics
2.7Meta-Ethical Theories
2.8Conscience
3Developments in Christian Thought
3.1Saint Augustine's Teachings
3.2Death & the Afterlife
3.3Knowledge of God's Existence
3.4The Person of Jesus Christ
3.5Christian Moral Principles
3.6Christian Moral Action
3.7Development - Pluralism & Theology
3.8Development - Pluralism & Society
3.9Gender & Society
3.10Gender & Theology
Jump to other topics
1Philosophy of Religion
1.1Ancient Philosophical Influences: Plato
1.2Ancient Philosophical Influences: Aristotle
1.3Ancient Philosophical Influences: Soul, Mind, Body
1.4The Existence of God - Arguments from Observation
1.5The Existence of God - Arguments from Reason
1.6Religious Experience
1.7The Problem of Evil
1.8The Nature & Attributes of God
1.9Religious Language: Negative, Analogical, Symbolic
2Religion & Ethics
2.1Natural Law
2.2Situation Ethics
2.3Kantian Ethics
2.4Utilitarianism
2.5Euthanasia
2.6Business Ethics
2.7Meta-Ethical Theories
2.8Conscience
3Developments in Christian Thought
3.1Saint Augustine's Teachings
3.2Death & the Afterlife
3.3Knowledge of God's Existence
3.4The Person of Jesus Christ
3.5Christian Moral Principles
3.6Christian Moral Action
3.7Development - Pluralism & Theology
3.8Development - Pluralism & Society
3.9Gender & Society
3.10Gender & Theology

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