2.3.3

Summum Bonum & Three Postulates

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Summum Bonum and the Three Postulates

The summum bonum is the end goal of Kant’s categorical imperative. To achieve the summum bonum, you not only have to follow the categorical imperative, but also the three postulates.

How to achieve *summum bonum*

How to achieve summum bonum

  • If you act morally, you can achieve summum bonum - supreme good.
  • Kant uses it throughout his deontological approach to mean the highest happiness.
  • The summum bonum is received after we die and is a reward for acting morally and following the duty you have been given through following the categorical imperative.
    • It is therefore quite often compared to Heaven.
Must be acting for goodness

Must be acting for goodness

  • To receive the summum bonum, you need to follow the categorical imperative and follow your innate duty.
  • You must be acting for goodness, not for selfish reasons or to gain something else.
  • Kant argued you cannot attain the summum bonum if you are simply acting morally to reach it. You must be acting out of good will, not just to attain a goal.
The three postulates

The three postulates

  • The three postulates can explain to an individual why they should act morally as being moral is rational. They are sometimes names the postulates of practical reason.
1. Freedom

  1. Freedom

  • You must act autonomously - of your own accord.
  • Therefore, an individual must be able to access freedom and have freedom of choice to act as they wish.
  • If they do not have this ability, they cannot achieve the summum bonum. This is because somebody must be acting according to their own duty, using their own thoughts and actions.
2. Immortality

  1. Immortality

  • To receive the ultimate end goal, summum bonum, we must accept that there is an afterlife and that we have an immortal soul.
  • If we felt that we only existed in the life we have now, then the summum bonum would not be possible.
  • Therefore, to use the categorical imperative correctly and achieve the summum bonum, we must accept the fact that the soul is immortal and that there is something for us after we die - the summum bonum - heaven.
3. God

  1. God

  • Kant argues that moral law is evidence to prove God’s existence.
  • He goes on to say that there is only one being that could reward those that follow the categorical imperative - God.
  • This is because God is omniscient (all-knowing), omnibenevolent (all-loving) and omnipotent (all-powerful).
  • Therefore, if you believe in the first two postulates, then you must believe in the fact that God exists.
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1

Philosophy of Religion

1.1

Ancient Philosophical Influences: Plato

1.1.1Plato's Understanding of Reality1.1.2Plato's Theory of Forms1.1.3Plato's Analogy of the Cave1.1.4The Purpose of Plato's Analogy of the Cave1.1.5Evaluation of Plato's Theories
1.2

Ancient Philosophical Influences: Aristotle

1.2.1Aristotle's Understanding of Reality1.2.2Aristotle's Four Causes1.2.3Aristotle's Prime Mover
1.3

Ancient Philosophical Influences: Soul, Mind, Body

1.3.1Plato & Aristotle's Views of the Soul1.3.2Metaphysics of Consciousness1.3.3Materialism - Ryle’s Philosophical Behaviourism1.3.4Materialism - Identity Theory
1.4

The Existence of God - Arguments from Observation

1.4.1The Teleological Argument - Aquinas' Fifth Way1.4.2The Teleological Argument - Paley & Evolution1.4.3The Cosmological Argument1.4.4Hume's Criticisms: Teleological & Cosmological
1.5

The Existence of God - Arguments from Reason

1.5.1The Ontological Argument1.5.2Criticisms of the Ontological Argument
1.6

Religious Experience

1.6.1Introduction to Religious Experience1.6.2Mystical Experience1.6.3Conversion Experience1.6.4Understanding Religious Experience1.6.5Issues Relating to Religious Experience - Validity1.6.6Issues Relating to Religious Experiences - People
1.7

The Problem of Evil

1.7.1Presentations of the Problems of Evil1.7.2Discussion Points -
1.8

The Nature & Attributes of God

1.8.1Omnipotence1.8.2Omniscience1.8.3Boethius - Divine Knowledge, Free Will & Eternity1.8.4(Omni)benevolence1.8.5Eternity & Free Will
1.9

Religious Language: Negative, Analogical, Symbolic

1.9.1Apophatic & Cataphatic Way1.9.2Symbol1.9.3Discussion Points: Religious Language
1.10

Religious Language: 20th Century Perspective

1.10.1Logical Positivism & Verification Principle1.10.2Wittgenstein1.10.3Falsification Symposium: Flew & Hare1.10.4Falsification Symposium: Mitchell1.10.5Discussion Points: Verification & Falsification1.10.6Discussion Points: Aquinas vs Wittgenstein
2

Religion & Ethics

2.1

Natural Law

2.1.1St Thomas Aquinas - Telos & Four Tiers of Law2.1.2St Thomas Aquinas - Precepts2.1.3St Thomas Aquinas - Real & Apparent Goods2.1.4Discussion Points - Natural Law & Doing Good2.1.5Discussion Points - Telos & Double Effect Doctrine
2.2

Situation Ethics

2.2.1Fletcher's Situation Ethics2.2.2Fletcher's Concept of Conscience2.2.3Discussion Points: Moral Decision-Making2.2.4Discussion Points - Agape
2.3

Kantian Ethics

2.3.1Introduction to Kantian Ethics & Duty2.3.2Hypothetical & Categorical Imperative2.3.3Summum Bonum & Three Postulates2.3.4Discussion Points: Kantian Ethics
2.4

Utilitarianism

2.4.1The Utility Principle2.4.2Act & Rule Utilitarianism2.4.3Discussion Points: Utilitarianism
2.5

Euthanasia

2.5.1Key Concepts for Euthanasia Debates2.5.2Discussion Points: Natural Law & Situation Ethics2.5.3Discussion Points: Sanctity of Life2.5.4Discussion Points: Autonomy & Medical Intervention
2.6

Business Ethics

2.6.1Corporate Social Responsibility & Whistle-Blowing2.6.2Good Ethics & Globalisation2.6.3Discussion Points: Utilitarianism & Kantian Ethics2.6.4Discussion Points: CSR, Globalisation & Capitalism
2.7

Meta-Ethical Theories

2.7.1Naturalism2.7.2Intuitionism2.7.3Emotivism2.7.4Meta-Ethics
2.8

Conscience

2.8.1Aquinas' Theological Approach2.8.2Freud's Psychological Approach2.8.3Comparing Aquinas & Freud
2.9

Sexual Ethics

2.9.1Sexual Ethics2.9.2Development of Religious Beliefs on Sexual Ethics2.9.3Application of Sexual Ethics2.9.4Examining Sexual Ethics
3

Developments in Christian Thought

3.1

Saint Augustine's Teachings

3.1.1Human Nature3.1.2Original Sin & God's Grace
3.2

Death & the Afterlife

3.2.1Heaven, Hell, & Purgatory3.2.2Different Interpretations of the Afterlife3.2.3Election3.2.4The Final Judgement3.2.5Discussion Points: Heaven, Hell & Purgatory
3.3

Knowledge of God's Existence

3.3.1Natural Knowledge3.3.2Revealed Knowledge in Faith, Grace, & Jesus Christ3.3.3Revealed Knowledge in the Bible & Church3.3.4Discussion Points: Reason & Belief in God3.3.5Discussion Points: The Fall & Trust in God
3.4

The Person of Jesus Christ

3.4.1Jesus Christ’s Authority as the Son of God3.4.2Jesus Christ’s Authority as a Teacher of Wisdom3.4.3Jesus Christ’s Authority as a Liberator
3.5

Christian Moral Principles

3.5.1The Bible & Love3.5.2Bible, Church & Reason3.5.3Discussion Points: Christian Ethics3.5.4Discussion Points: Love & the Bible
3.6

Christian Moral Action

3.6.1Dietrich Bonhoeffer & the Confessing Church3.6.2Bonhoeffer & Civil Disobedience3.6.3Bonhoeffer's Teaching on Ethics as Action3.6.4Discussion Points: Civil Disobedience & Bonhoeffer
3.7

Development - Pluralism & Theology

3.7.1Pluralism & Theology: Exclusivism & Inclusivism3.7.2Pluralism & Theology: Pluralism3.7.3Discussion Points: Salvation3.7.4Discussion Points: Pluralism Undermining Beliefs
3.8

Development - Pluralism & Society

3.8.1Development of Multi-Faith Societies3.8.2Responses to Inter-Faith Dialogue3.8.3The Scriptural Reasoning Movement3.8.4Discussion Points: Social Cohesion & Scripture3.8.5Discussion Points: Conversion
3.9

Gender & Society

3.9.1Waves of Feminism3.9.2Traditional Christian Views on Gender Roles3.9.3Christian Views on Gender Roles & Family3.9.4Discussion Points: Secular Views of Gender3.9.5Discussion Points: Motherhood & Family
3.10

Gender & Theology

3.10.1Rosemary Radford Ruether3.10.2Mary Daly3.10.3Discussion Points: Ruether & Daly3.10.4Discussion Points: Male Saviour & Female God
3.11

Challenges

3.11.1Secularism - Sigmund Freud3.11.2Secularism - Richard Dawkins3.11.3Christianity & Public Life3.11.4Discussion Points: Spiritual Values3.11.5Discussion Points: Social Values & Opportunities3.11.6Karl Marx3.11.7Liberation Theology

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  1. 1
    What does *summum bonum* mean?Multiple choice
  2. 2
    Which of these are true of *summum bonum*? True / false
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Hypothetical & Categorical Imperative

Discussion Points: Kantian Ethics