Mankind are benefited, human nature is ennobled by them.
 Adam Smith, The Theory of Moral Sentiments (1759). copy citation

Context

“but for either of them to envy the internal happiness and prosperity of the other, the cultivation of its lands, the advancement of its manufactures, the increase of its commerce, the security and number of its ports and harbours, its proficiency in all the liberal arts and sciences, is surely beneath the dignity of two such great nations. These are all real improvements of the world we live in. Mankind are benefited, human nature is ennobled by them. In such improvements each nation ought, not only to endeavour itself to excel, but from the love of mankind, to promote, instead of obstructing the excellence of its neighbours. These are all proper objects of national emulation, not of national prejudice or envy.9” source