The line is from "The House is Quiet and the World is Calm," a late poem that actually celebrates, if anything, the final rest of the old reader-poet. No blazing artifice there.
A little further googling and I realize that the line has been passed around from web hand to web hand, obviously further and further from its context, until it is simply axiomatic that it's a "motivational saying." It is, for instance, "Quotation #31277 from Laura Moncur's Motivational Quotations." This is one of those rare moments when I wish Stevens was still around to respond to such "use" of his poetry. He would surely fire off a quip that would be memorable in itself. The world is not calm.
"I teach horizontally, meaning that while I might begin with a fixed idea of what I'm going to teach that day, I let it drift rhizomatically way off topic, often pulling it back when it gets too far. I rely on non-fixed materials to teach this way; the whole world is at my fingertips. Should I go off on a tangent about John and Rauschenberg and their love relationship as expressed in Rauschenberg's bed, an image of that bed is always a click away. From there, we can head anywhere into the non-fixed universe, be it film, text or sound. And of course, that always takes us elsewhere. As Cage says, 'We are getting nowhere fast.'" 
that anyone has yet got the imaginative measure of that terrifying day six years ago. Certainly our Tolstoy has not crawled out of the rubble. The closest we have, Don DeLillo, succeeded as an essayist-journalist ("In the Ruins of the Future: Reflections on Terror and Loss in the Shadow of September,” Harper’s, December 2001) but, to my mind, failed as a novelist ("Falling Man"). One reason, perhaps, is that the remembered emotion was instantly buried under a pile of cultural junk.' - Tod Gitlin in his review of Susan Faludi's The Terror Dream (written for 
