With this book the author moves from what Aristotle and Aquinas called the order of practical studies to the theoretical. At their highest levels it is from the ethical to the metaphysical. To the modern mind, if the consideration of morality or ethics is hardly relevant in the study of science the consideration of ontology or metaphysics is even less so. Indeed, any principles or conclusions put would almost universally be regarded as quite unscientific.
What the author wishes to show in this book is that this modern mental position could not be further from the truth. A close study of Aristotle shows, and Aquinas clearly demonstrates, that all human science and knowledge depends upon what we can know from Metaphysics. The core of this study, which is given the name “Ontology”, from the Greek to on (Latin ens), rather loosely rendered in English as “being”, is all contained virtually in St. Thomas’s pregnant sentence, id quod primo cadit in intellectu est ens (“that which the human mind is first aware of is being”).
Leave this out and the bottom falls out of all our other knowledge. This evacuation, as Aristotle shows, cannot really be done. But, many philosophers and scientists of the modern era, like Heraclitus of old, pose as if they rejected the certainties of Metaphysics., to the detriment of all science. Hopefully, our readers will see the need for the return of Wisdom, which Metaphysics is, to its position of eminence in the study of science.
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Grace is an aspiring fashion designer with a loving family and a crazy cat named Kitten Kaboodle. She loves the Latin Mass, spending time with family and friends, and bringing fantasy to life through her hobbies, including co-producing with Chantal LaFortune of 
