“If machines are going to take jobs away from the worker, then he will need to find something else to do. Perhaps he'll get back to the soil. But we must care for him during the period of change. We must keep him away from Red literature, Red ruses; we must see that his mind remains healthy.”

Speech delivered on September 6, 1990, before the Annual Judicial Conference of the Second Circuit, quoted in Supreme Justice Speeches and Writings Thurgood Marshall. Edited by J. Clay Smith, Jr. (2002).

"I cannot speak to the authenticity of the quotation ... attributed to Hitler in the very many Web postings at which it is found, and without devoting far more research time than it warrants." - Ken Leford http://thepragmaticprogressive.blogspot.com/2011/03/hitler-and-unions.html.
Disputed

Source: The Road Less Traveled: A New Psychology of Love, Traditional Values and Spiritual Growth

Storm of the Century (1999), Taglines

Speech at the National Sugar Plenary Meeting in Camagüey, February 9, 1963 Ernesto Che Guevera. Escritos y discursos. Op. cit., vol. 7.
On Automation (1963)

Sermons

Quote from Manet's letter to the Paris' art-critic Théodore Duret, 1875, as quoted in Letters of the great artists – from Blake to Pollock -, Richard Friedenthal, Thames and Hudson, London, 1963, p. 121
1850 - 1875