Marius Victorinus

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Marius Victorinus

Roman philosopher

Also known as: Gaius Marius Victorinus

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July 14, 2026

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Gaius Marius Victorinus was a Roman rhetorician and grammarian who converted to Christianity in 355 CE. He was known for his original writings, which effectively critiqued Arianism and presented orthodox Trinitarianism using Neoplatonic concepts. His speculations on the inner life of the Trinity were later adopted by Augustine of Hippo. Victorinus's work represents a significant development in Christian philosophy during the post-Nicene period.12

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Platonism
Patristic Platonism
…the rhetorician and grammarian Marius Victorinus. A strong and simple Platonic theism and morality, which had a great influence in the Middle Ages, was nobly expressed in the final work of the last great philosopher-statesman of the ancient world, Boethius (c. 470–524). This was the De consolatione philosophiae (Consolation of…
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…the rhetorician and grammarian Marius Victorinus. A strong and simple Platonic theism and morality, which had a great influence in the Middle Ages, was nobly expressed in the final work of the last great philosopher-statesman of the ancient world, Boethius (c. 470–524). This was the De consolatione philosophiae (Consolation of…
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history of logic
Transmission of Greek logic to the Latin West
In the 4th century Marius Victorinus produced Latin translations of Aristotle’s Categories and De interpretatione and of Porphyry of Tyre’s Isagoge (“Introduction,” on Aristotle’s Categories), although these translations were not very influential. He also wrote logical treatises of his own. A short De dialectica (“On Dialectic”), doubtfully attributed to…
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In the 4th century Marius Victorinus produced Latin translations of Aristotle’s Categories and De interpretatione and of Porphyry of Tyre’s Isagoge (“Introduction,” on Aristotle’s Categories), although these translations were not very influential. He also wrote logical treatises of his own. A short De dialectica (“On Dialectic”), doubtfully attributed to…
Read More

patristic literature
The post-Nicene Latin Fathers
…significant than either, however, was Gaius Marius Victorinus, the brilliant professor whose conversion in 355 caused a sensation at Rome. Obscure but strikingly original in his writings, he was an effective critic of Arianism and sought to present orthodox Trinitarianism in uncompromisingly Neoplatonic terms. His speculations about the inner life…
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…significant than either, however, was Gaius Marius Victorinus, the brilliant professor whose conversion in 355 caused a sensation at Rome. Obscure but strikingly original in his writings, he was an effective critic of Arianism and sought to present orthodox Trinitarianism in uncompromisingly Neoplatonic terms. His speculations about the inner life…
Read More

Western philosophy
Medieval philosophy
Ambrose (339–397), St. Victorinus (died c. 304), and St. Augustine (354–430) began to assimilate Neoplatonism into Christian doctrine in order to give a rational interpretation of Christian faith. Thus, medieval philosophy was born of the confluence of Greek (and to a lesser extent of Roman) philosophy and…
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Ambrose (339–397), St. Victorinus (died c. 304), and St. Augustine (354–430) began to assimilate Neoplatonism into Christian doctrine in order to give a rational interpretation of Christian faith. Thus, medieval philosophy was born of the confluence of Greek (and to a lesser extent of Roman) philosophy and…
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