Johann Herbart’s work on education and particularly mathematical psychology influenced me. I think mathematics is the pure instance of construct func… - George Kelly

Out of all this I have gradually developed the notion that psychology is pretty much confined to the paradigms it employs and, while you can take off in a great many directions and travel a considerable distance in any of them — as indeed we have with stimulus-response psychology — there is no harm in consorting with a strange paradigm now and then. Indeed the notion has occurred to me that psychology may best be regarded as a collection of paradigms wooed by exphysicists, ex-physiologists, and ex-preachers, as well as a lot of other intellectual renegades. Even more recently it has struck me that this is the nature of man; he is an inveterate collector of paradigms.

I have been so puzzled over the early labelling of as ‘cognitive’ that several years ago I set out to write another short book to make it clear that I wanted no part of cognitive theory.

There is another meaning that might be attached to this admonition to be oneself; that one should not try to disguise himself. I suspect this comes nearer to what psychologists mean when they urge people to be themselves. It is presumed that the person who faces the world barefaced is more spontaneous, that he expresses himself more fully, and that he has a better chance of developing all his resources if he assumes no disguises.