Abstract

An animal enters the world with a set of highly specialized and firmly directed instincts which are correlated with pre-typified situations in the environment. Consequently it lives in a surrounding world, structured by its instinctual inheritance, which is specific to its own particular species and admitting only a limited range of variations within which life for it is possible. Man at birth is, compared to the non-human animal, an unfinished being, and his surrounding world partakes of his unfinished character. It is a world that must be fashioned then by man's own activity; he must make a human world for himself.