Wolfgang Köhler quotes
If we wish to imitate the physical sciences, we must not imitate them in their contemporary, most developed form; we must imitate them in their historical youth, when their state of development was comparable to our own at the present time. Otherwise we should behave like boys who try to copy the imposing manners of full-grown men without understanding their raison d'être, also without seeing that in development one cannot jump over intermediate and preliminary phases.
Wolfgang Köhler
For adult man with his mechanized methods of solution, proof is sometimes needed, as here, that an action was a real achievement, not something self-evident; that the breaking off a branch from a whole tree, for instance, is an achievement over and above the simple use of a stick, is shown at once by animals les.
Wolfgang Köhler
Our present knowledge of human perception leaves no doubt as to the general form of any theory which is to do justice to such knowledge: a theory of perception must be a field theory. By this we mean that the neural functions and processes with which the perceptual facts are associated in each case are located in a continuous medium.
Wolfgang Köhler