If the chief part of human happiness arises from the consciousness of being beloved, as I believe it does, those sudden changes of fortune seldom contribute much to happiness.
 Adam Smith, The Theory of Moral Sentiments (1759). copy citation

Context

“He generally grows weary too soon, and is provoked, by the sullen and suspicious pride of the one, and by the saucy contempt of the other, to treat the first with neglect, and the second with petulance, till at last he grows habitually insolent, and forfeits the esteem of all. If the chief part of human happiness arises from the consciousness of being beloved, as I believe it does, those sudden changes of fortune seldom contribute much to happiness. He is happiest who advances more gradually to greatness, whom the public destines to every step of his preferment long before he arrives at it, in whom, upon that account, when it comes, it can excite no extravagant joy, and with regard to whom it cannot reasonably create either any jealousy in those he overtakes, or any envy in those he leaves behind.” source