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In short, intelligence, considered in what seems to be its original feature, is the faculty of manufacturing artificial objects, especially tools to make tools, and of indefinitely urging the manufacture.

"Creative Evolution" (1907) by Henri Bergson, as quoted in "Bergson, Complexity and Creative Emergence" by David Kreps, 2015.
In short, intelligence, considered in what seems to be its original feature, is the faculty of manufacturing artificial objects, especially tools to make tools, and of indefinitely urging the manufacture.