PhilosophersThomas d'Aquin
Thomas d'Aquin
Faith and reason cannot contradict each other.
Thomism (Scholasticism) · Aristotelianism1225 – 1274 ItalyTheologianChristian AristotelianNatural law thinkerDominican friar
vers 1252-1256
On Being and Essence
A short early treatise, written in Paris for his fellow friars: in every creature, what it is (essence) differs from the fact that it exists (being). In God alone the two are one.
vers 1259-1265
Summa contra Gentiles essential
A defence of the faith by reason, aimed at those who do not share the Scriptures. Part of his own handwritten manuscript survives.
1265-1273
Summa theologiae essential
His masterpiece, written for theology students as questions, objections and replies. Unfinished: he stopped writing at the end of 1273; the "Supplement" was put together after his death, probably by his secretary, Reginald of Piperno.
vers 1267
On Kingship (De regno)
An unfinished political treatise, completed after his death by another Dominican, Ptolemy of Lucca. Not yet in our corpus.