"Thinking begins only when we have come to know that reason, glorified for centuries, is the stiff-necked adversary of thought"
About this Quote
The phrase “stiff-necked adversary” is doing heavy work. It personifies reason as stubborn, proud, incapable of bending toward what exceeds its categories. That’s the subtext: modern culture’s confidence in rational explanation is also a refusal of vulnerability. Reason wants clarity, control, and final accounts. Heidegger’s “thinking” wants exposure to what resists being rendered into a concept: Being, finitude, the ordinary world before it’s processed into “objects” for a knowing subject.
Context matters. Heidegger is writing in the wake of centuries of rationalism and the scientific revolution, but also amid 20th-century technological modernity, when knowledge increasingly means calculation, prediction, and optimization. His critique isn’t anti-science; it’s anti-reduction. He worries that calculative reasoning colonizes everything, including humans, turning existence into standing-reserve: resources to be ordered and used.
The intent is to re-open a space for a different mode of attention: not the problem-solving brain, but the kind of thinking that asks what makes problem-solving possible in the first place. It’s a slap meant to wake the reader from intellectual autopilot, to make “reason” feel less like virtue and more like a cage.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Martin Heidegger, What Is Called Thinking? (English trans. J. Glenn Gray), Harper & Row, 1968 — commonly cited source for this passage. |
| Cite |
Citation Formats
APA Style (7th ed.)
Heidegger, Martin. (2026, January 18). Thinking begins only when we have come to know that reason, glorified for centuries, is the stiff-necked adversary of thought. FixQuotes. https://fixquotes.com/quotes/thinking-begins-only-when-we-have-come-to-know-773/
Chicago Style
Heidegger, Martin. "Thinking begins only when we have come to know that reason, glorified for centuries, is the stiff-necked adversary of thought." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/thinking-begins-only-when-we-have-come-to-know-773/.
MLA Style (9th ed.)
"Thinking begins only when we have come to know that reason, glorified for centuries, is the stiff-necked adversary of thought." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/thinking-begins-only-when-we-have-come-to-know-773/. Accessed 21 Feb. 2026.












