Before they are slain these poor brutes are maltreated in ways almost beyond enumeration. Visit shipping pens, stocktrains, stockyards and packinghouses, if you want evidence of the sufferings of the poor beasts of the field. And these very sufferings are through the law of sympathetic mental vibrations transferred to the flesh of those who eat the bodies of these animals. The undefined fears, the terrors of the nightmare, and the many disturbances in stomach and bowels that man endures may be in a measure traced to these unsuspected sources.

As to Meat Eating, Unity Magazine, October 1903. Quoted in Will Tuttle, The World Peace Diet (2005), ch. 8.