substitution of terms: Dewey

“if we once start thinking, no one can guarantee where we shall come out — except to say that many ends, objects, and institutions are doomed. Every thinker puts some portion of an apparently stable world in peril, and no one can wholly predict what will emerge in its place.”
—John Dewey

if we once start writing poetry, no one can guarantee where we shall come out — except to say that many ends, objects, and institutions are doomed. Every poet puts some portion of an apparently stable world in peril, and no one can wholly predict what will emerge in its place.

self-enclosed, self-limiting

A poem presents material so that it becomes a universe in itself…There is something self-enclosed and self-limiting in a poem, and this self-sufficiency is the reason, as well as the harmony and rhythm of sounds, why poetry is, next to music, the most hypnotic of the arts.

—John Dewey, "The Varied Substance Of The Arts," Art As Experience(Perigee/Penguin Putnam Books, 1980)