"I rode across the country on a motorcycle in 1975. I remember it was the worst time of year and bloody cold. When I was going through Texas, I went through the feedlots, which I had never seen before. It was a very sobering sight—heartbreaking and awful. It's a corporate system completely out of touch with what is sustainable, what is humane, what is compassionate. At the time, I didn't even know what a vegetarian was. I just thought, "I can't eat [animals] anymore.""
January 1, 1970
https://en.wikiquote.org/wiki/Vegetarianism