“The fact that no one has come up with a really convincing reason for giving greater moral weight to members of our own species, simply because they are members of our species, strongly suggests that there is no such reason. Like racism and sexism, speciesism is wrong.”

—  Peter Singer

Source: The Point of View of the Universe: Sidgwick and Contemporary Ethics (2017), p. 343

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Peter Singer 54
Australian philosopher 1946

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