Zaiden, Emily. "Craft In America / The American Craft Council and Aileen Osborn Webb." Craft In America / The American Craft Council and Aileen Osborn Webb. N.p., n.d. Web. 19 Oct. 2013. <http://www.craftinamerica.org/artists_metal/story_585.php>.
“The king said that mankind must not work for themselves. The priest said that mankind must not think for themselves. One forged chains for the hands, the other for the soul.”
The Liberty of Man, Woman and Child (1877)
Context: Nothing has been left undone by the enemies of freedom. Every art and artifice, every cruelty and outrage has been practiced and perpetrated to destroy the rights of man. In this great struggle every crime has been rewarded and every virtue has been punished. Reading, writing, thinking and investigating have all been crimes.
Every science has been an outcast.
All the altars and all the thrones united to arrest the forward march of the human race. The king said that mankind must not work for themselves. The priest said that mankind must not think for themselves. One forged chains for the hands, the other for the soul.
Help us to complete the source, original and additional information
Robert G. Ingersoll 439
Union United States Army officer 1833–1899Related quotes

“If I am all mankind, are they themselves without me?”
"Study of Loneliness" (1975), trans. Czesław Miłosz and Lillian Vallee
Hymn of the Pearl (1981)

Poem: The Jackdaw of Rheims http://www.bartleby.com/246/108.html

“Mankind must put an end to war - or war will put an end to mankind.”
1961, UN speech
Context: Mankind must put an end to war — or war will put an end to mankind.
So let us here resolve that Dag Hammarskjold did not live, or die, in vain. Let us call a truce to terror. Let us invoke the blessings of peace. And as we build an international capacity to keep peace, let us join in dismantling the national capacity to wage war.
Context: We meet in an hour of grief and challenge. Dag Hammarskjold is dead. But the United Nations lives. His tragedy is deep in our hearts, but the task for which he died is at the top of our agenda. A noble servant of peace is gone. But the quest for peace lies before us.
The problem is not the death of one man — the problem is the life of this organization. It will either grow to meet the challenges of our age, or it will be gone with the wind, without influence, without force, without respect. Were we to let it die, to enfeeble its vigor, to cripple its powers, we would condemn our future. For in the development of this organization rests the only true alternative to war — and war appeals no longer as a rational alternative. Unconditional war can no longer lead to unconditional victory. It can no longer serve to settle disputes. It can no longer concern the great powers alone. For a nuclear disaster, spread by wind and water and fear, could well engulf the great and the small, the rich and the poor, the committed and the uncommitted alike. Mankind must put an end to war — or war will put an end to mankind.
So let us here resolve that Dag Hammarskjold did not live, or die, in vain. Let us call a truce to terror. Let us invoke the blessings of peace. And as we build an international capacity to keep peace, let us join in dismantling the national capacity to wage war.

“It is sad that often, to be a good patriot, one must be the enemy of the rest of mankind.”
Il est triste que souvent, pour être bon patriote, on soit l'ennemi du reste des hommes.
"Country"
Citas, Dictionnaire philosophique (1764)

Source: The Riverworld series, The Magic Labyrinth (1980), Ch. 19
Context: The visitor said that his kind called themselves the Ethicals, though they had other names for themselves. They were on a higher plane of ethical development than most Earthlings. Notice that he said most. This indicates that there have been some of us who have achieved the same level as the Ethicals.

“Mankind may wring her secrets from nature, and use their knowledge to destroy themselves.”
Conclusion
Religion and the Rise of Capitalism (1926)