ABSTRACT

Throughout recorded history scientists, philosophers, and storytell­ ers have sought to understand how it is that their fellows can appear to remain the same while at the same time changing all the while. Behav­ ioral scientists have been trying to catch up with the novelists and play­ wrights who have explored and exposed the dramatic conflicts between human stability and change. The present authors are among the rela­ tively few behavioral scientists who have chosen to follow the progress of a large cohort of people, in this case as they experienced a consider­ able portion of their adult lives from when they were first studied in 1954 to when they were reinterviewed twenty years later, in 1974.