To unsettle the existence of a God, it is only necessary to ask a theologian to speak of Him; as soon as he utters one word about Him, the least reflection makes us discover at once that what he says is incompatible with the essence which he attributes to his God. Therefore, what is God? It is an abstract word, coined to designate the hidden forces of nature; or, it is a mathematical point, which has neither length, breadth, nor thickness. A philosopher [David Hume] has very ingeniously said in speaking of theologians, that they have found the solution to the famous problem of Archimedes; a point in the heavens from which they move the world.