Part I. i?t the Cke AT 10^. 63 



induce. Wldiouc this circular Motion of the 

 Earth, here could be no living : One Hemi- 

 fphere would be condemned to perpetual Cold 

 and Darknefs, the other continually roafted and 

 parch'd by the Sun- beams. And it is reafona- 

 ble to think, that this circular Motion is as 

 neceflary to moft other Planetary Bodies, as it 

 is to the Earth. As for the fix'd Stars, if they be 

 Suft-like Bodies, it is probable alfo each of them 

 moves' circularly upon its own Axis^ as ^e Sun 

 doth : But what Neceffity there is of fuch a 

 Motion, for want of underftanding the Nature 

 of thofe Bodies, I muft confefs my felf not yet 

 to comprehend ; tho' that it is very great, I 

 doubt not, both for themfelves, and for the Bo- 

 dies about them. 



Firft, for the Celeftlal, or Heavenly Bodies, 

 the Equability and Conftancy of their Motions, 

 the Certainly of their Periods and Revolu- 

 tions, the Conveniency of their Order and Situ- 

 ations, argue them to be ordain'd and govern'd 

 by Wifdom and Underftanding ; yea, fo much 

 Wifdom as Man cannot eafiiy fathom or com- 

 prehend : For we fee, by how much the Hy- 

 potbejes of Aft.ronomers are more fimple and 

 conformable to Reafon, by fo much do they give 

 a better Account of the Heavenly Motions. It 

 is reported oi Alphonfm King of Arragon^ (I know 

 not whether truly) that when he law and con- 

 fider'd the many Eccentricks^ Epicycles^ Epi- 

 cycles upon Epicycles, Lihrations, and Contra- 

 riety of Motions, which were requifite in the 

 old Hypothejis to give an Account of the Cele- 

 1 ^ Jlial 



