"I presume that very few men and very few women would be willing to go and catch hold either sheep or of oxen and themselves slaughter the creatures in order that they may eat. [...] Now, I venture to submit that if people want to eat meat, they should kill the animals for themselves, that they have no right to degrade other people by work of that sort. Nor should they say that if they did not do it the slaughter would still go on. [...] Every person who eats meat takes a share in that degradation of his fellow-men; on him and on her personally lies the share, and personally lies the responsibility."
January 1, 1970
https://en.wikiquote.org/wiki/Vegetarianism