I have already written three blog posts about early July's 7th European Conference on Positive Psychology in Amsterdam ... firstly on pre-conference workshops "Positive supervision and positive relationships", then on "Love, national happiness comparison tables, & life satisfaction assessment" and most recently on "What proportion of well-being is genetically determined?" After lunch on the first full day of the conference, I was faced with choosing from fifteen different workshops, symposia & paper sessions. I picked a "paper session" on "Self-determination theory (S-DT)". S-DT is a bit of a passion of mine ... absolutely central to my clinical and personal understanding of eudaimonia, well-being & positive psychology.