The concept that you are not ingesting rotting flesh sort of sums it up for me.

When I see bacon, I see a pig, I see a little friend, and that's why I can't eat it. Simple as that.

No member of the animal kingdom nurses past maturity, no member of the animal kingdom ever did a thing to me. Its why I don't eat red meat or white fish, don't give me no blue cheese. Were all members of the animal kingdom, leave your brothers and sisters in the sea.

A man can live and be healthy without killing animals for food; therefore, if he eats meat, he participates in taking animal life merely for the sake of his appetite. And to act so is immoral.

Eating meat is a leftover of the greatest brutality [killing]; the transition to vegetarianism is the first and most natural consequence of enlightenment.

Vegetarianism serves as the criterion by which we know that the pursuit of moral perfection on the part of humanity is genuine and sincere.