"There are thoughts we must not think"
About this Quote
Duerrenmatt, a Swiss dramatist steeped in postwar moral wreckage, spent his career engineering plots where tidy ethics collapse under the weight of chance, power, and institutional hypocrisy. Read through that lens, the line isn’t a pious defense of decency so much as an indictment of societies that survive by declaring certain conclusions unthinkable: that justice can be purchased, that innocence is a narrative convenience, that systems prefer stability to truth. "Must not" signals social necessity, not logical impossibility; it hints at taboo as infrastructure.
The subtext is almost comic in its bleakness. If there truly are forbidden thoughts, who decided? And why? Duerrenmatt’s worlds are full of respectable people doing indefensible things while insisting on moral order. The sentence captures that self-deception in miniature: it sounds like restraint, but it’s also a confession that the dangerous thought is already present, already forming, already knocking.
It works because it implicates the reader. You immediately start inventorying your own mental contraband - and that reflex is the point.
Quote Details
| Topic | Ethics & Morality |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Durrenmatt, Friedrich. (2026, January 17). There are thoughts we must not think. FixQuotes. https://fixquotes.com/quotes/there-are-thoughts-we-must-not-think-49193/
Chicago Style
Durrenmatt, Friedrich. "There are thoughts we must not think." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/there-are-thoughts-we-must-not-think-49193/.
MLA Style (9th ed.)
"There are thoughts we must not think." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/there-are-thoughts-we-must-not-think-49193/. Accessed 12 Feb. 2026.












