“The biggest mistake of the average wage earner is forgetting that no company has or will ever have a human heart.”
Source: Radiorama de Occidente. "La Otra Historia". Rock & Pop 1480 AM. Guadalajara, Mexico.
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José Baroja 143
Chilean author and editor 1983Related quotes

“You cannot lift the wage earner up by pulling the wage payer down.”
Actually a statement by William J. H. Boetcker known as "The Ten Cannots" (1916), this has often been misattributed to Lincoln since 1942 when a leaflet containing quotes by both men was published.
Misattributed
Context: You cannot bring about prosperity by discouraging thrift. You cannot strengthen the weak by weakening the strong. You cannot help small men by tearing down big men. You cannot help the poor by destroying the rich. You cannot lift the wage earner by pulling down the wage payer. You cannot keep out of trouble by spending more than your income. You cannot further the brotherhood of man by inciting class hatreds. You cannot establish security on borrowed money. You cannot build character and courage by taking away a man's initiative and independence. You cannot help men permanently by doing for them what they could and should do for themselves.

“Biggest damfool mistake I ever made.”
Referring to his appointment of Earl Warren as Chief Justice of the Supreme Court; reported in Fred Rodell, "The Complexities of Mr. Justice Fortas", The New York Times Magazine (July 28, 1968), p. 12. William B. Ewald, Jr., research assistant for Eisenhower's memoirs, says in Eisenhower the President, p. 95 (1981), "I myself once, and once only, heard him say in Gettysburg in 1961, 'The two worst appointments I ever made came out of recommendations from the Justice Department: that fellow who headed the Antitrust Division, Bicks, and Earl Warren'".
Disputed

“Against those who exploit wage earners and widows and orphans,”
Source: Book of Malachi, Chapter 3, Verse 5, Lines 1-6, (NKJV)
Context: And I will come near you for judgement;
I will be a swift witness
Against sorcerers,
Against adulterers,
Against perjurers,
Against those who exploit wage earners and widows and orphans
“The biggest mistake we could ever make in our lives is to think we work for anybody but ourselves.”

https://archive.org/stream/baburnama017152mbp/baburnama017152mbp_djvu.txt

1920s, Second State of the Union Address (1924)

Harrison Emerson, " Shop betterment and the individual effort method of profit-sharing http://archive.org/stream/americanengineer80newy#page/64/mode/1up" in: International Railway Journal Vol. 13. p. 61. 1905; Partly cited in Drury (1918, p. 141)