Those, who are unacquainted with nature, the properties of beings, and the effects which must necessarily result from the concurrence of certain causes, think, that every thing takes place by chance. It is not chance, that has placed the sun in the centre of our planetary system; it is by its own essence, that the substance, of which it is composed, must occupy that place, and thence be diffused. 44. The worshippers of a God find, in the order of the universe, an invincible proof of the existence of an intelligent and wise being, who governs it. But this order is nothing but a series of movements necessarily produced by causes or circumstances, which are sometimes favourable, and sometimes hurtful to us: we approve of some, and complain of others. Nature uniformly follows the same round; that is, the same causes produce the same effects, as long as their action is not disturbed by other causes, which force them to produce different effects. When the operation of causes, whose effects we experience, is interrupted by causes, which, though unknown, are not the less natural and necessary, we are confounded; we cry out, _a miracle!_ and attribute it to a cause much more unknown, than any of those acting before our eyes. The universe is always in order. It cannot be in disorder. It is our machine, that suffers, when we complain of disorder. The bodies, causes, and beings, which this world contains, necessarily act in the manner in which we see them act, whether we approve or disapprove of their effects. Earthquakes, volcanoes, inundations, pestilences, and famines are effects as necessary, or as much in the order of nature, as the fall of heavy bodies, the courses of rivers, the periodical motions of the seas, the blowing of the winds, the fruitful rains, and the favourable effects, for which men praise God, and thank him for his goodness. To be astonished that a certain order reigns in the world, is to be surprised that the same causes constantly produce the same effects. To be shocked at disorder, is to forget, that when things change, or are interrupted in their actions, the effects can no longer be the same. To wonder at the order of nature, is to wonder that any thing can exist; it is to be surprised at any one's own existence. What is order to one being, is disorder to another. All wicked beings find that every thing is in order, when they can with impunity put every thing in disorder. They find, on the contrary, that every thing is in disorder, when they are disturbed in the exercise of their wickedness. 45.