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Sumner, William Graham. From "The Concentration of Wealth: Its Economic Justification," in Social Darwinism: Selected Essays by William Graham Sumner. Edited by Stow Persons. Prentice-Hall Inc., 1963. Copyright © 1963 by Prentice-Hall, Inc., copyright renewed © 1991 by Stow Persons. All rights reserved. Reprinted with permission of Simon & Schuster Adult Publishing Group.