"Because we cannot know what God is, but only what He is not, we cannot consider how He is but only how He is not"
About this Quote
The intent is methodological. Medieval theology, especially in Aquinas’s scholastic world, prized disciplined reasoning; it also inherited a warning from earlier Christian and Neoplatonic thinkers (the “negative theology” tradition): God exceeds the categories that make knowledge possible. So Aquinas offers a kind of intellectual humility with teeth. If your concepts are built from finite experience, then applying them straightforwardly to an infinite source will distort. The only honest route is via negation: God is not changeable, not limited, not composite, not ignorant. Each “not” peels away a human projection.
The subtext is also political inside the academy and the church. This is Aquinas protecting doctrine from both naive literalism and overconfident speculation. If you can’t say what God “is” in the same way you describe a tree or a king, then you also can’t weaponize God as a convenient explanation for whatever you want to assert. The line disciplines rhetoric: it forces believers and theologians alike to admit that their certainty has a grammar, and that grammar is restraint.
Quote Details
| Topic | God |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Aquinas, Thomas. (2026, January 15). Because we cannot know what God is, but only what He is not, we cannot consider how He is but only how He is not. FixQuotes. https://fixquotes.com/quotes/because-we-cannot-know-what-god-is-but-only-what-2018/
Chicago Style
Aquinas, Thomas. "Because we cannot know what God is, but only what He is not, we cannot consider how He is but only how He is not." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/because-we-cannot-know-what-god-is-but-only-what-2018/.
MLA Style (9th ed.)
"Because we cannot know what God is, but only what He is not, we cannot consider how He is but only how He is not." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/because-we-cannot-know-what-god-is-but-only-what-2018/. Accessed 12 Feb. 2026.





