David Grayson Page 2
  Go and open the door.
  Even if there's only
  the darkness ticking,
  even if there's only
  the hollow wind,
  even if
                        is there,
go and open the door.5

As a scientist, Holub is concerned not only with asking questions, but also with methodology: how we try to answer those questions. In "Brief Re-flection on Cats Growing on Trees," Holub de-scribes how a kingdom of moles investigated the unknown world above ground.

They elected a committee to supervise the project.
  This committee
  sent up a quick and clever mole who, when he left the     motherland

underground, spotted a bird sitting in a tree.

And so a theory was established; up there birds are   growing on trees.6

Holub cautions against easy or obvious answers. His background as a scientist compels him to make the reader acutely aware of the challenges of science and of seeking knowledge. For example, in "Brief Reflection on Accuracy," Holub relates how two local timekeepers-one a clock maker and the other a soldier who fires a cannon at "six o'clock sharp" each day-unwittingly rely on each other for an authoritative time standard.7 Also, he notes how slow and piecemeal intellectual progress can prove. In "Brief Reflection on the Theory of Relativity," the French poet and penseur Paul Valéry asks Einstein how he approaches new ideas. The re-nowned physicist replies: