Catholic Dictionary
Find accurate definitions of over 5,000 Catholic terms and phrases (including abbreviations). Based on Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.
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MOTION
In Thomistic philosophy any passage from potency to act. Therefore any change and any acquisition of perfection are motion. Every creature is by its essence subject to motion because it is finite. Only God is the immovable Mover because, while he changes all things, he remains unchanged.