No More Learning

A proper physio-psychology has to
contend with           antagonism in the heart of the investigator,
it has "the heart" against it even a doctrine of the reciprocal
conditionalness of the "good" and the "bad" impulses, causes (as
refined immorality) distress and aversion in a still strong and manly
conscience--still more so, a doctrine of the derivation of all good
impulses from bad ones.