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?
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.
For life is tendency, and the essence of a tendency is to develop in the form of a sheaf, creating, by its very growth, divergent directions among which its impetus is divided.
