"It is an hypothesis that the sun will rise tomorrow: and this means that we do not know whether it will rise"
About this Quote
The subtext is a critique of how language smuggles in authority. When we say we “know” the sun will rise, we’re often doing something closer to staking a social claim (“I’m sane; I’m not playing word games”) than reporting a verified fact. Calling it an hypothesis exposes the scaffolding: prediction relies on patterns, induction, and trust in regularity, none of which can be conclusively proven from within experience. That’s Hume lurking in the background, and Wittgenstein enjoying the way a simple sentence can unsettle an entire epistemology.
Context matters: in his later work, Wittgenstein is preoccupied with the limits of justification and the bedrock “hinges” our reasoning turns on. Some beliefs aren’t conclusions; they’re starting points. The irony here is that labeling the sunrise a hypothesis treats a hinge like a testable theory, and in doing so reveals how much of what we call knowing is really a form of life - practical certainty, not airtight proof. The sentence works because it weaponizes banality: it turns the ordinary into a philosophical trapdoor.
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Citation Formats
APA Style (7th ed.)
Wittgenstein, Ludwig. (2026, January 15). It is an hypothesis that the sun will rise tomorrow: and this means that we do not know whether it will rise. FixQuotes. https://fixquotes.com/quotes/it-is-an-hypothesis-that-the-sun-will-rise-593/
Chicago Style
Wittgenstein, Ludwig. "It is an hypothesis that the sun will rise tomorrow: and this means that we do not know whether it will rise." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/it-is-an-hypothesis-that-the-sun-will-rise-593/.
MLA Style (9th ed.)
"It is an hypothesis that the sun will rise tomorrow: and this means that we do not know whether it will rise." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/it-is-an-hypothesis-that-the-sun-will-rise-593/. Accessed 10 Feb. 2026.






