“ What counts in making a happy marriage is not so much how compatible you are, but how you deal with incompatibility. ” - Leo Tolstoy

Research.  Stages/Tasks.  Vaillant.  Kohlberg.  Adult "maturation tasks".  Retirement.  Death.

I read a lot of research.  When I find an article of particular interest I download it to my bibliographic database - EndNote - which currently contains over 15,300 abstracts.