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28. God / B. Proving God / 2. Proofs of Reason / c. Moral Argument

[proving God's existence from obvious morality]

6 ideas
God is not proved by reason, but is a postulate of moral thinking [Kant, by Davies,B]
     Full Idea: Kant speaks of God not as something known or proved to exist by virtue of rational argument, but as a postulate of moral reflection (that is, of 'practical reason').
     From: report of Immanuel Kant (Groundwork of the Metaphysic of Morals [1785]) by Brian Davies - Introduction to the Philosophy of Religion 9 'Morality'
     A reaction: Presumably it is a necessary postulate, which makes this a transcendental argument, surely?
We have to postulate something outside nature which makes happiness coincide with morality [Kant]
     Full Idea: The existence must be postulated of a cause of the whole of nature, itself distinct from nature, which contains the ground of the exact coincidence of happiness with morality.
     From: Immanuel Kant (Critique of Practical Reason [1788], I.II.II.V)
     A reaction: I can see that we need a concept of how happiness could be made proportional to morality, but I can't make sense of the assumption that it is actually possible, and hence something must exist that would achieve it.
Belief in justice requires belief in a place for justice (heaven), a time (eternity), and a cause (God) [Kant, by PG]
     Full Idea: To believe in justice in an unjust world, you have to believe in a place of perfect justice (heaven), a time for perfect justice (eternity), and a cause of perfect justice (God).
     From: report of Immanuel Kant (Critique of Practical Reason [1788], I.II.II.V) by PG - Db (ideas)
     A reaction: Compare Boethius in Idea 5765. I can see that we might need to grasp the ideals of eternal justice in order to understand morality, but belief in their genuine possibility, or even actuality, doesn't seem to follow.
Conduct is only reasonable or unreasonable if the world is governed by reason [Rashdall]
     Full Idea: Absolutely reasonable or unreasonable conduct could not exist in a world which was not itself the product of reason or governed by its dictates.
     From: Hastings Rashdall (Theory of Good and Evil [1907], II.III.I.4)
Absolute moral ideals can't exist in human minds or material things, so their acceptance implies a greater Mind [Rashdall, by PG]
     Full Idea: An absolute moral ideal cannot exist in material things, or in the minds of individual people, so belief in it requires belief in a Mind which contains the ideal and is its source.
     From: report of Hastings Rashdall (Theory of Good and Evil [1907], II.III.I.4) by PG - Db (ideas)
God must be fit for worship, but worship abandons morally autonomy, but there is no God [Rachels, by Davies,B]
     Full Idea: Rachels argues 1) If any being is God, he must be a fitting object of worship, 2) No being could be a fitting object of worship, since worship requires the abandonment of one's role as an autonomous moral agent, so 3) There cannot be a being who is God.
     From: report of James Rachels (God and Human Attributes [1971], 7 p.334) by Brian Davies - Introduction to the Philosophy of Religion 9 'd morality'
     A reaction: Presumably Lionel Messi can be a fitting object of worship without being God. Since the problem is with being worshipful, rather than with being God, should I infer that Messi doesn't exist?