Mention96959
Download triples| rdf:type | qkg:Mention |
| so:text | We find in the history of ideas mutations which do not seem to correspond to any obvious need, and at first sight appear as mere playful whimsies — such as Apollonius' work on conic sections, or the non-Euclidean geometries, whose practical value became apparent only later. (en) |
| so:isPartOf | https://en.wikiquote.org/wiki/Arthur_Koestler |
| so:description | The Sleepwalkers: A History of Man's Changing Vision of the Universe (1959) (en) |
| qkg:hasContext | qkg:Context47318 |
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Triples where Mention96959 is the object (without rdf:type)
| qkg:Quotation90604 | qkg:hasMention |
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