WHEN I heard the learn'd astronomer;When the proofs, the figures, were ranged in columns before me;When I was shown the charts and the diagrams, to add, divide, and measure them;When I, sitting, heard the astronomer, where he lec- tured with much applause in the lecture-room,How soon, unaccountable, I became tired and sick;Till rising and gliding out, I wander'd off by myself,In the mystical moist night-air, and from time to time,Look'd up in perfect silence at the stars.