Play (n.) is a free activity standing quite consciously outside 'ordinary' life as being 'not serious', but at the same time absorbing the player intensely and utterly.
Play (n.) proceeds within certain limits of time and space, in a visible order, according to rules freely accepted, and outside the sphere of necessity or material utility.
Play (n.) is characterized by a mood of rapture and enthusiasm and is accompanied by a feeling of exaltation and tension.
Play (n.) is older than culture, for culture, however inadequately defined, always presupposes human society, and animals have not waited for man to teach them their playing.
Play (n.) is a mood of rapture and enthusiasm, and is sacred or festive in accordance with the occasion. A feeling of exaltation and tension accompanies the action.
Play (n.) is an older social impulse than culture itself. Competitive play pervades all life like a veritable ferment. Ritual grew up in sacred play... poetry was born in play and nourished on play... music and dancing were pure play. . . .We have to conclude, therefore, that civilization is, in its earliest phases, played. It does not come from play. . . It arises in and as play, and never leaves it.
Play (n.) is the sole abstraction that cannot be denied: Though justice, beauty, truth, goodness, mind, God and seriousness can be.
Play (n.) is a uniquely adaptive act, not subordinate to some other adaptive act, but with a special function of its own in human experience.