ABSTRACT
In this chapter we shall try to show that while it is true that what we call concepts of common sense are fashioned by an unconscious process, the process is otherwise strictly analogous to the operation by which we form scientific theories; that here, too, the causal tendency, the principle of identity in time, plays a preponderant rôle, and that from this point of view common sense is an integral part of science ; or, inversely, that science is, as has been said, but with perhaps a slightly different meaning—only a prolongation of common sense. In preceding chapters we were obliged to discuss briefly by anticipation certain particular aspects of the problem. We are now going to examine it a little more closely.
