The Theory of Moral Sentiments by Adam Smith

Though our effectual good offices can very seldom be extended to any wider society than that of our country; our goodwill is circumscribed by no boundary, but may embrace the immensity of the universe. We cannot form the idea of any innocent and sensible being, whose happiness we should not desire, or to whose misery, when distinctly brought home to the imagination, we should not have some degree of aversion. The idea of a mischievous, though sensible, being, indeed, naturally provokes our hatred: but the ill-will which, in this case, we bear to it, is really the effect of our universal benevolence. It is the effect of the sympathy which we feel with the misery and resentment of those other innocent and sensible beings, whose happiness is disturbed by its malice.

This universal benevolence, how noble and generous soever, can be the source of no solid happiness to any man who is not thoroughly convinced that all the inhabitants of the universe, the meanest as well as the greatest, are under the immediate care and protection of that great, benevolent, and all-wise Being, who directs all the movements of nature; and who is determined, by his own unalterable perfections, to maintain in it, at all times, the greatest possible quantity of happiness. To this universal benevolence, on the contrary, the very suspicion of a fatherless world, must be the most melancholy of all reflections; from the thought that all the unknown regions of infinite and incomprehensible space may be filled with nothing but endless misery and wretchedness. All the splendour of the highest prosperity can never enlighten the gloom with which so dreadful an idea must necessarily overshadow the imagination; nor, in a wise and virtuous man, can all the sorrow of the most afflicting adversity ever dry up the joy which necessarily springs from the habitual and thorough conviction of the truth of the contrary system.