James P. Carse said this quote

To be playful is not to be trivial or frivolous, or to act as if nothing of consequence will happen. On the contrary, when we are playful… everything that happens is of consequence, for seriousness is a dread of the unpredictable outcome of open possibility. To be serious is to press for a specified conclusion. To be playful is to allow for unlimited possibility.

~ James P. Carse

What will undo any boundary is the awareness that it is our vision, and not what we are viewing, that is limited.

~ James P. Carse

A finite game is played for the purpose of winning, an infinite game for the purpose of continuing the play.

~ James P. Carse