The Third Law
The third law concerns the kind of recreation. First it should be a well-known game, for there can be no pleasure, if it is not known by player nor colleagues, nor by the lookers-on. Further, it must at the same time refresh the mind and exercise the body, if indeed the season of the year and state of health are suitable. But if not, it must be a game in which mere chance does not count for everything. There must be some skill in it, which may balance chance.