The price of Negroes keeps up amazingly

Sirs … I should be very glad to be concerned in the African Trade and will be a quarter of the voyage, if you choose it … . I should choose to be insured, and whatever Expence came to my Share more than the slaves sent, I would remit by return of the vessel that bro’t the slaves. The whole of the voyage I leave you to conduct and you may begin to prepare if you please, … [for] the price of Negroes keeps up amazingly.
~ Carter Braxton (1763)

The African trade is precious not only because of gold and ivory

The African trade is precious not only because of gold and ivory, it is infinitely more so because of the blacks that it makes possible for only they are capable of carrying through the hard work which the agriculture and manufacturing demand.
~ Nantes Chamber of Commerce (1762)

I'm making up for a decade of deprivation

The great thing about being an ex-vegan is that I really appreciate my meat, eggs, and cheese. I’m making up for a decade of deprivation.
~ Bob Zavadowski (April 3, 2010)

As Axes, Hoes, or any other Utensil of Agriculture

In Spight of all Endeavours to disguise the Point, it is clear as Light itself, that Negroes are as essentially necessary to the Cultivation of Georgia, as Axes, Hoes, or any other Utensil of Agriculture.
~ Thomas Stephens (1743)

Replace the nonhuman in your question with a human

You already know these answers, of course. Replace the nonhuman in your question with a human. Then, the reasons why we must show compassion are endless.
~ Jason Dunn (May 23, 2010)

With Fear and Trembling, in Singleness of Heart

So far from that, that it binds the Obligations to Duty more strongly upon us; for the Gospel Institution most strictly enjoins Obedience; it requires all not to be slothful in Business, and commands Servants to be obedient to them that are their Masters, according to the Flesh, with Fear and Trembling, in Singleness of Heart.
~ Stephen Hales (1734)

The vulnerable ones should be protected, not exploited

The vulnerable ones should be protected, not exploited. We shall end nonhuman slavery.
~ Vera Cristofani (June 11, 2010)

Animal rights philosophy could be considered a disease of civilization

If you listen to the animal rights writers, you quickly realize that their goal is a homogenized globalized culture based on a Western ethical paradigm and a human separation from nature. Animal rights philosophy could be considered a “disease of civilization.”
~ Melissa McEwen (April 16, 2010)