Instinct perfected is a faculty of using and even constructing organized instruments; intelligence perfected is the faculty of making and using unorganized instruments.
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 varying the manufacture.
Is it astonishing that, like children trying to catch smoke by closing their hands, philosophers so often see the object they would grasp fly before them?
It is the very essence of intelligence to coordinate means with a view to a remote end, and to undertake what it does not feel absolutely sure of carrying out.
We regard intelligence as man’s main characteristic and we know that there is no superiority which intelligence cannot confer on us, no inferiority for which it cannot compensate.
