The fundamental psychic and intellectual process is that of participating in the creation of traditions; and the ingredients out of which traditions can be created, or the materials in which potential traditions can be perceived and jointly recognized, are not at all coincident with the mathematical contents of the game.

DEFINE: Clarifies that traditions are the core unit of chess culture, distinct from and irreducible to the mathematical/game-theoretic content.

Thomas C. Schelling, The Strategy of Conflict, loc. 254