"He that will believe only what he can fully comprehend must have a long head or a very short creed"
About this Quote
The subtext is theological without being preachy. “Creed” isn’t just any belief set; it’s a jab at dogmatism that masquerades as skepticism. Teilhard, a Jesuit priest and evolutionary thinker, lived in the crossfire between Catholic doctrine and modern science. His larger project tried to reconcile faith with evolution and cosmic development, so he had a personal stake in defending a kind of responsible belief that can live with partial knowledge. In his universe, insisting on full comprehension before belief is less an epistemic principle than a refusal to participate in the unfinishedness of reality.
The phrase “must have” gives it the snap of inevitability: this isn’t a gentle suggestion, it’s a trap. And “fully” is the real culprit word. Teilhard isn’t endorsing credulity; he’s warning that making completeness the admission ticket for belief quietly disqualifies most of what matters: trust, scientific inference, moral commitment, even love. The irony is that the posture of strict rational control can end up looking like fear - fear of being wrong, or worse, of being changed.
Quote Details
| Topic | Faith |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Chardin, Pierre Teilhard de. (2026, January 18). He that will believe only what he can fully comprehend must have a long head or a very short creed. FixQuotes. https://fixquotes.com/quotes/he-that-will-believe-only-what-he-can-fully-2675/
Chicago Style
Chardin, Pierre Teilhard de. "He that will believe only what he can fully comprehend must have a long head or a very short creed." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/he-that-will-believe-only-what-he-can-fully-2675/.
MLA Style (9th ed.)
"He that will believe only what he can fully comprehend must have a long head or a very short creed." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/he-that-will-believe-only-what-he-can-fully-2675/. Accessed 12 Feb. 2026.












