Uploaded May 2026 | Updated September 2026, 1 week ago
According to the ancient philosopher Boethius, a person is an individual substance of a rational nature. What is meant by the word “substance?” And what does it mean to have a rational nature? In this video, Fr. James Brent, O.P., breaks down Boethius’ definition of a person using St. Thomas Aquinas as a guide.
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Aquinas 101 is a project of the Thomistic Institute that seeks to promote Catholic truth through short, engaging video lessons. You can browse earlier videos at your own pace or enroll in one of our FREE Aquinas 101 courses on St. Thomas Aquinas and his masterwork, the Summa theologiae. In these courses, you'll learn from expert scientists, philosophers, and theologians—including Dominican friars from the Province of St. Joseph. Enroll today at go.thomisticinstitute.org/register-youtube-a101. And don’t forget to like and share with your friends, because it matters what you think!
#ThomisticInstitute #ThomasAquinas #Catholic #Thomism #Aquinas101 #philosophy #theology
According to the ancient philosopher Boethius, a person is an individual substance of a rational nature. What is meant by the word “substance?” And what does it mean to have a rational nature? In this video, Fr. James Brent, O.P., breaks down Boethius’ definition of a person using St. Thomas Aquinas as a guide.
⭐ Join Fr. Gregory Pine, O.P. and over 20,000 enrollees inside our FREE Aquinas 101 online learning platform! go.thomisticinstitute.org/register-youtube-a101.
❓ Questions you want answered? Make sure to put #AskAFriar in your comment!
— SEND THE TRUTH TO THOUSANDS OF SOULS! —
• Donate: go.thomisticinstitute.org/donate-youtube-a101
— AQUINAS 101 —
• Subscribe to this channel: go.thomisticinstitute.org/subscribe-youtube
• Enroll in a FREE course: go.thomisticinstitute.org/register-youtube-a101
— THE THOMISTIC INSTITUTE —
• Subscribe to the TI podcast: go.thomisticinstitute.org/podcast-youtube
• Thomistic Institute: go.thomisticinstitute.org/ti-website-youtube
— SOCIAL MEDIA —
• Instagram: instagram.com/thomisticinstitute
• Facebook: facebook.com/ThomisticInstitute
• Twitter: twitter.com/ThomisticInst
• LinkedIn: linkedin.com/company/thomistic-institute
— ABOUT —
Aquinas 101 is a project of the Thomistic Institute that seeks to promote Catholic truth through short, engaging video lessons. You can browse earlier videos at your own pace or enroll in one of our FREE Aquinas 101 courses on St. Thomas Aquinas and his masterwork, the Summa theologiae. In these courses, you'll learn from expert scientists, philosophers, and theologians—including Dominican friars from the Province of St. Joseph. Enroll today at go.thomisticinstitute.org/register-youtube-a101. And don’t forget to like and share with your friends, because it matters what you think!
#ThomisticInstitute #ThomasAquinas #Catholic #Thomism #Aquinas101 #philosophy #theology
