“…I have called this collection Certainties and on the first page I quote Werner Heisenberg’s attempt to articulate the fundamental paradox of quantum ‘uncertainty’: that knowledge of location (position) and momentum (direction) are mutually exclusive at least at the quantum level.
I have appropriated this concept to my own experience: If I know where I am, I can never be certain where I am going. And the corollary: If I know where I am going, I cannot be certain where I am. My poems are exceptions. They are certainties because they are ‘fixed’ moments of experience or reflection, identified in words that provide both locale and direction, at least in hindsight.”
—From the Preface of Certainties