Deists, as defined by their contemporary, Ephraim Chambers (in his _Cyclopædia ..._, London, 1728), are those "whose distinguishing character it is, not to profess any particular form, or system of religion; but only to acknowledge the existence of a God, without rendering him any external worship, or service. The Deists hold, that, considering the multiplicity of religions, the numerous pretences to revelation, and the precarious arguments generally advanced in proof thereof; the best and surest way is, to return to the simplicity of nature, and the belief of one God, which is the only truth agreed to by all nations." They "reject all revelations as an imposition, and believe no more than what natural light discovers to them...."[i-6] The "simplicity of nature" signifies "the established order, and course of natural things; the series of second causes; or the laws which God has imposed on the motions impressed by him."[i-7] And attraction, a kind of _conatus accedendi_, is the crown, according to the eighteenth century, of the series of secondary causes. Hence, Newtonian physics became the surest ally of the deist in his quest for a religion, immutable and universal. The Newtonian progeny were legion: among them were Boyle, Keill, Desaguliers, Shaftesbury, Locke, Samuel Clarke, 'sGravesande, Boerhaave, Diderot, Trenchard and Gordon, Voltaire, Gregory, Maclaurin, Pemberton, and others. The eighteenth century echoed Fontenelle's eulogy that Newtonianism was "sublime geometry." If, as Boyle wrote, mathematical and mechanical principles were "the alphabet, in which God wrote the world," Newtonian science and empiricism were the lexicons which the deists used to read the cosmic volume in which the universal laws were inscribed. And the deists and the liberal political theorists "found the fulcrum for subverting existing institutions and standards only in the laws of nature, discovered, as they supposed, by mathematicians and astronomers."[i-8]