The wings of Time are black and white, 

 Pied with morning and with night. 

 Mountain tall and ocean deep 

 Trembling balance duly keep. 

 In changing moon, in tidal- wave, 

 Glows the feud of Want and Have. 

 Gauge of more and less through space. 

 Electric star and pencil plays. 

 The lonely Earth amid the balls 

 That hurry through the eternal halls, 

 A make- weight flying to the void, 

 Supplemental asteroid, 

 Or compensatory spark, 

 Shoots across the neutral Dark. 



EMERSON. 



An intelligence which should be acquainted with 

 all the forces by which nature is animated, 

 and with the several positions at any given in- 

 stant of all the parts thereof; if, further, its in- 

 tellect were vast enough to submit these data to 

 analysis, would include in one and the same 

 formula the movements of the largest bodies in 

 the universe and those of the lightest atoms. 

 Nothing would be uncertain for it, the future 

 as well as the past would be present to its eyes. 

 The human mind, in the perfection it has been 

 able to give to astronomy, affords a feeble out- 

 line of such an intelligence. Its discoveries in 

 mechanics and in geometry, joined to that of 

 universal gravitation, have brought it within the 

 reach of comprehending in the same analytical 

 expressions tne past and future states of the 

 systems of the world. 



LAPLACE, quoted by Pearson, The Grammar of 

 Science. 



