No man has seen it; nor the lensed eye That pin-points week by week the same patch of sky Records even a blur across its pupil. Only The errantry of Saturn, the wry Retarding of Uranus, speak Of the pull beyond the pattern: The unknown is shown Only by a bend in the known.

In: Neil Curry (ed.), Norman Nicholson Collected Works, The Undiscovered Planet (p. 211)