You own a watch the invention of the mind,
Though for a single motion 'tis designed,
As well as that which is with greater thought
With various springs, for various motions wrought.

This quote traces its origin to Cicero—De Natura Deorum. Found also in Herbert of Cherbury's treatise De Religione Gentilium. Hale—Primitive Origination of Mankind. Bolingbroke, in a letter to Pouilly. Paley used the illustration, which he took from Niuwentyt.