… is from page 118 of H.L. Mencken’s, A Second Mencken Chrestomathy  (1995); it’s reprinted from an article that Mencken wrote for the July 21st, 1935, edition of Manchester, England’s Sunday Chronicle:
The human race detests thrift as it detests intelligence. The man who accumulates more than he needs and saves the surplus is disliked by all who either can’t or won’t follow his example, and that means the great majority of his fellow men. He makes them ashamed of themselves and they resent it.