“Thus men continue to accuse themselves of being unjust, violent, cruel, and treacherous to one another, but they do not accuse themselves of cutting the throats of other animals and of feeding upon their mangled limbs, which, nevertheless, is the single cause of that injustice, of that violence, of that cruelty, and of that treachery. … Men believe themselves to be just, provided that they fulfil, in regard to their fellows, the duties which have been prescribed to them. But it is goodness which is the justice of man; and it is impossible, I repeat it, to be good towards one's fellow without being so towards other existences.”

Thalysie: the New Existence. Quoted in The Ethics of Diet: A Catena of Authorities Deprecatory of the Practice of Flesh-eating https://archive.org/stream/ethicsofdietcate00will/ethicsofdietcate00will#page/n3/mode/2up by Howard Williams (London: F. Pitman, 1883), p. 214.