Aquinas' Five Proofs for the existence of God are philosophical arguments presented in his work, "Summa Theologica." They include:
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The Argument from Motion: Everything in motion must have been set in motion by something else, leading to the necessity of a first unmoved mover, which is God.
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The Argument from Causation: Every effect has a cause, and there must be a first cause that is uncaused, which is God.
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The Argument from Contingency: Because things exist contingently, there must be a necessary being that causes their existence, which is God.
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The Argument from Degree: The varying degrees of goodness, truth, and nobility imply the existence of a perfect being, which is God.
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The Teleological Argument: The order and purpose found in the universe suggest an intelligent designer, which is God.