Who said "We must be constantly aware that the world is changing."?

This quote is attributed to Wallace Stevens.

We must be constantly aware that the world is changing. - Wallace Stevens

"We must be constantly aware that the world is changing."

Wallace Stevens Change

Poet American 1879–1955

"The only emperor is the emperor of ice-cream."

"One must have a mind of winter to regard the frost and the boughs of the pine trees crusted with snow."

"The imagination is man's power over nature."

"After the final no there comes a yes and on that yes the future world is built."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."