1974, Thomas S. Szasz, M.D., chapter 12, in The Myth of Mental Illness, ISBN0-06-091151-4, page 201:
I have used the notion of games so far as if it were familiar to most people. I think this is justified as everyone knows how to play some games. Accordingly, games serve admirably as models for the clarification of other, less well-understood, social-psychological phenomena. Yet the ability to follow rules, play games, and construct new games is a faculty not equally shared by all persons. [...]
He lived until he reached the age of 90 with most of his faculties intact.