“It is an hypothesis that the sun will rise tomorrow: and this means that we do not know whether it will rise.”

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Meaning

The quote says that even something as familiar as the sunrise is not something we logically know with certainty. It points out the difference between expectation based on habit and actual knowledge. In this view, assuming tomorrow will come is still only an assumption.

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Source

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Original Language & Translation

Originally said in English.

Did They Really Say It?

No source found on Wikiquote; the quote is attributed to Ludwig Wittgenstein.

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About Ludwig Wittgenstein

Austro-British philosopher

Ludwig Josef Johann Wittgenstein was an Austro-British philosopher associated with logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language. He is known for work that shaped twentieth-century philosophical debate, especially in these fields. His writing centers on how language works, how thought is expressed, and the foundations of reasoning and meaning.

More from Ludwig Wittgenstein (113 quotes) →

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Books by Ludwig Wittgenstein

Tractatus logico-philosophicus

1921

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Zettel

1967

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Philosophische Untersuchungen

1953

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Über Gewissheit

1972

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