A central truth of the Darwinian philosophy is the unity and consanguinity of all organic life. And during the next century or two the ethical coroll… - J. Howard Moore

The relations of living beings to each other observed among the races (especially the unconscious races) of the earth to-day, or as contemplated in the paleontologies of past evolutions, are not such, I assert, as to appeal with anything like eloquence to the ideal of any unbiased mind. I will assert further, that the principle that has operated in the development of life on this planet, the natural selection principle, and the relations prevalently established among living beings by the necessities of this principle, are irrational and barbarous—that the moral progress thus far made by civilized beings here on the earth has been made in spite of, and in opposition to, this principle—and finally, that the great task of reforming and regenerating the universe and of establishing right relations among its inhabitants consists in the elimination of those tendencies implanted in the natures of living beings by the struggle and survival principle.

The psychology of the exploitation of nonhuman beings by human beings is not different in kind from the psychology of any other act of exploitation. The great first cause of man's inhumanity to not-men is the same precisely as the great first cause of man's inhumanity to man—Selfishness—blind, brutal, unconscionable egoism.

Nature is the universe, including ourselves. And are we not all the time tinkering at the universe, especially the garden patch that is next to us—the earth? Every time we dig a ditch or plant a field, dam a river or build a town, form a government or gut a mountain, slay a forest or form a new resolution, or do anything else almost, do we not change and reform Nature, make it over again and make it more acceptable than it was before? Have we not been working hard for thousands of years, and do our poor hearts not almost faint sometimes when we think how far, far away the millennium still is after all our efforts, and how long our little graves will have been forgotten when that blessed time gets here?