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Peter Kreeft is a Roman Catholic Apologist and professor of philosophy at Boston College.

====== 20 Arguments for the Existence of God ======
Kreeft believes he can prove the existence of God. He documents 20 arguments for the existence of God on his [[https://www.peterkreeft.com/topics-more/20_arguments-gods-existence.htm|website]].

===== The Argument from Change =====
This argument seems to be a variation of [[https://en.wikipedia.org/wiki/Five_Ways_(Aquinas)|The First Way]]. It goes something like:

<mermaid>
%%{init: {'theme':'forest'}}%%
flowchart LR
    A(All changing things require an external, unchanging cause.)--> B
    B(The universe is a changing thing.)--> C
    C(Therefore, the universe requires an external, unchanging cause. This cause is God.)
</mermaid>

In the argument, Kreeft states, "Briefly, if there is nothing outside the material universe, then there is nothing that can cause the universe to change." I'm not convinced this is true.

However, the more fundamental issue with the argument seems to be that it defines the first cause as God. If the first cause does not have a mind (consciousness), it is not God. If we treat the first cause as a variable, we can take every property of God except consciousness, assign it to the first cause variable, and still have a logically coherent first cause.

===== The Argument from Efficient Causality =====

===== The Argument from Time and Contingency =====

===== The Argument from Degrees of Perfection =====

===== The Design Argument =====

===== The Kalam Argument =====

===== The Argument from Contingency =====

===== The Argument from the World as an Interacting Whole =====

===== The Argument from Miracles =====

===== The Argument from Consciousness =====

===== The Argument from Truth =====

===== The Argument from the Origin of the Idea of God =====

===== The Ontological Argument =====

===== The Moral Argument =====

===== The Argument from Conscience =====

===== The Argument from Desire =====

===== The Argument from Aesthetic Experience =====

===== The Argument from Religious Experience =====

===== The Common Consent Argument =====

===== Pascal's Wager =====