“In a condition of struggle and of failure we must be able to say "I must try harder" or "I must try differently." Both views are essential . . . A change in either makes for a change in outcome. When we say "I must try harder" we mean that the most relevant variable is something within us - intention, will, determination, "meaning it" . . When we say "I must try differently" we mean that the most relevant variable lies in the situation within which intention is being exerted, that we should look to the environment, to the ways it pushes and pulls at us, and in this study find the means to alter that interaction.”