Habría que sentir una total indiferencia hacia el hombre y el animal para conseguir ser feliz. - Isaac Bashevis Singer

"But my gloom did not lessen. I knew that I'd had a bad dream, and I stood in the dark trying to recollect it. The second I closed my eyes, I was with the dead. They did things words cannot express. They spoke madness. ("Hanka")"

"When a human kills an animal for food, he is neglecting his own hunger for justice. Man prays for mercy, but is unwilling to extend it to others. Why should man then expect mercy from God? It's unfair to expect something that you are not willing to give. It is inconsistent. I can never accept inconsistency or injustice. Even if it comes from God. If there would come a voice from God saying, "I'm against vegetarianism!" I would say, "Well, I am for it!" This is how strongly I feel in this regard."

We must believe in free will, we have no choice.