Nature never appeals to intelligence until habit and instinct are useless. There is no intelligence where there is no change and no need of change. Only those animals partake of intelligence that have to meet a huge variety of needs and dangers.
 H. G. Wells, The Time Machine (1895). copy citation

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Author H. G. Wells
Source The Time Machine
Topic intelligence change danger science
Date 1895
Language English
Reference
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Weblink http://www.gutenberg.org/cache/epub/35/pg35-images.html

Context

“And a great quiet had followed.
'It is a law of nature we overlook, that intellectual versatility is the compensation for change, danger, and trouble. An animal perfectly in harmony with its environment is a perfect mechanism. Nature never appeals to intelligence until habit and instinct are useless. There is no intelligence where there is no change and no need of change. Only those animals partake of intelligence that have to meet a huge variety of needs and dangers.
'So, as I see it, the Upper-world man had drifted towards his feeble prettiness, and the Under-world to mere mechanical industry. But that perfect state had lacked one thing even for mechanical perfection—absolute permanency.” source

Meaning and analysis

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