“The assumption that animals are without rights and the illusion that our treatment of them has no moral significance is a positively outrageous example of Western crudity and barbarity. Universal compassion is the only guarantee of morality.”
Source: The Basis of Morality
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Arthur Schopenhauer 261
German philosopher 1788–1860Related quotes
"The Legal and Moral Bases of Animal Rights", in Ethics and Animals, edited by Harlan B. Miller and William H. Williams (Clifton, NJ: Humana Press, 1983), p. 118 https://books.google.it/books?id=JBPlBwAAQBAJ&pg=PA118.

“Wisdom, compassion, and courage are the three universally recognized moral qualities of men.”

An Anthropologist On Mars, The New Yorker, 27 December 1993
“What would I do without the moral compass of a teenage werewolf?”
Source: Magic Burns

Who Killed Childhood? http://www.city-journal.org/html/14_2_oh_to_be.html (Spring 2004).
City Journal (1998 - 2008)

“Nothing penetrates the liberal's sense of moral outrage.”
Afterburner with Bill Whittle https://web.archive.org/web/20090225020338/http://www.pjtv.com/page/Afterburner_with_Bill_Whittle/127/ ()