CHAP. XV. _On the Respect that is due from true Philosophy to Religion._ The view of the universe, the reflections of our minds, and the inclinations of our hearts, all concur to strengthen the thought, that there exists a God; and without power to comprehend this Infinite Being, to form a just idea of His essence and perfections, the confused sentiment of his grandeur, and the continual experience of their own weakness, are so many imperious motives, which, in all ages and countries, have impelled men to worship a God. Those natural ideas have acquired new force by the light of revelation; but it is not in a metaphysical work that the authenticity of the Christian religion ought to be discussed; nor could we add much to the doctrines contained in books composed at different periods on this important subject. All discussions which are allied to truths, whose authenticity depends on facts, are necessarily confined within certain bounds; and we are obliged to pursue a beaten track, and run over the same circle, when we enter on such a well-known subject. I shall then confine myself to some general reflections, and make choice of those which are best adapted to the particular genius of the present age, and the modifications which our sentiments receive from predominate opinions; for our judgments, like our impressions, vary with the change which happens insensibly in habits and manners: one age is that of intolerance and bigotry; another of relaxation and indifference, or a contempt of all ancient customs: every century, every generation is distinguished by a general character, a character which we take sometimes for new ideas; whilst it is nothing but the natural effect of exaggeration in our preceding opinions. Men are subject to moral laws, similar in several respects to mechanical rules; and with all their knowledge and pride, they remind us of those children, who, placed at the extremity of a long balance, rise and fall successively. They can only be fixed by moderate sentiments, which are sustained by their own force; any other has a borrowed action, and this action is never in perfect equilibrium with truth.