His humanistic intuitions about the difficulties and possibilities inherent in therapists' struggles with their patients, parents' struggles with their children, a mass society's struggle with its citizens, and the self's struggle with itself were perhaps not profoundly original.
He was inspired by observing the day to day lives of other people. 
mnli hypothesis: He was inspired by observing the day to day lives of other people.  premise: His humanistic intuitions about the difficulties and possibilities inherent in therapists' struggles with their patients, parents' struggles with their children, a mass society's struggle with its citizens, and the self's struggle with itself were perhaps not profoundly original.