SPECULATIONS UPON THE HUMAN MIND IN 1915

is also the medium through which the observations are made, and that there is no objective standard by which the accuracy of transmission through this medium can be estimated and corrected. In the result the materials collected are subjected to a very special and very stringent kind of censorship. If an observation is acceptable and satisfactory to the mind itself, it is reported as true; if it contains material which is unwelcome to the mind, it is reported as false; and in both cases the failure is in no sense due to any conscious dishonesty in the observing mind, but is a fallacy necessarily inherent in the method. A fairly characteristic product of inquiries of this type is the conception, which seems so obvious to common sense, that introspection does give access to all mental processes, so that a conscious motive must be discoverable for all the acts of the subject. Experience {69} with more objective methods has shown that when no motive is found for a given act or no motive consistent with the mind’s pretensions as