Embryo Project Encyclopedia Articles

The principal work of St. Thomas Aquinas, the Summa Theologica is divided into three parts and is designed to instruct both beginners and experts in all matters of Christian Truth. It discusses topics central to Christian morality, ethics, law, and the life of Christ, providing philosophical and theological solutions to common arguments and questions surrounding the Christian faith. The views presented in this body of writing are currently upheld in large part by the modern doctrines of the Roman Catholic Church. Interesting references to and insights on ensoulment and embryology, as well as other topics discussed in Summa Theologica, indicate a strong Aristotelian and Augustinian influence.

Widely known as a key contributor to the Roman Catholic Church's body of doctrine, St. Thomas Aquinas also published an opinion on the moral status of embryos and fetuses that seems contradictory to the Catholic Church's current standpoint on the matter. Born in Naples, Italy, around 1225 (scholars debate the exact year of many of his life events) to wealthy nobility, Thomas Aquinas quickly proved himself a pious and astute scholar with an insatiable desire for logic and understanding. After receiving his formative education in Montecassino and Naples, Italy, Aquinas joined the order of the Dominicans. His desire for the holy life shocked and upset his family, who lamented his choice of a poor lifestyle devoted to service. To prevent Aquinas from following through with his plan, his family held him captive in the San Giovanni fortress in Rocca Secca, Italy, for nearly two years. After his mother and siblings noted his devotion to the Church evidenced by his daily studies and constant writing (not to mention his dismissal of concubines), they relented and allowed him to take his vows with the Dominicans around 1245. It is also estimated that he officially received his Master's in the Arts from the University of Naples around this time.

Although the concept of quickening was not developed initially by the Roman Catholic Church, much of their histories are intertwined. Quickening, the point at which a pregnant woman can first feel the movements of the growing embryo or fetus, has long been a pivotal moment in pregnancy. Historically, it has also been a pivotal moment for law and the Church in deciding the criminal and religious sanctions for women who intentionally procured an abortion.

Quickening, the point at which a pregnant woman can first feel the movements of the growing embryo or fetus, has long been considered a pivotal moment in pregnancy. Over time, this experience has been used in a variety of contexts, ranging from representing the point of ensoulment to determining whether an abortion was legal to indicating the gender of the unborn baby; philosophy, theology, and law all address the idea of quickening in detail. Beginning with Aristotle, quickening divided the developmental stages of embryo and fetus. Indeed, this concept influenced the way embryology, human development, and hominization have been understood for over two thousand years.