“The suffering that animals undergo while being caught and eaten may be intense and the process by which they are killed may last for a quarter of an hour or more. Because the number of predators worldwide is enormous, and because, like us, many of them must eat with considerable frequency, the aggregate amount of suffering in the world at any time that is caused by predation is unimaginably vast.”

Steve Sapontzis, " Predation https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1220&context=ethicsandanimals", Ethics and Animals, Vol. 5, Iss. 2, Art. 4 (1984), p. 36

" The Meat Eaters http://opinionator.blogs.nytimes.com/2010/09/19/the-meat-eaters/", The New York Times, 19 Sept. 2010

Source: Darkness Visible (1990), III
Context: This general unawareness of what depression is really like was apparent most recently in the matter of Primo Levi, the remarkable Italian writer and survivor of Auschwitz who, at the age of sixty-seven, hurled himself down a stairwell in Turin in 1987. Since my own involvement with the illness, I had been more than ordinarily interested in Levi’s death, and so, late in 1988, when I read an account in The New York Times about a symposium on the writer and his work held at New York University, I was fascinated but, finally, appalled. For, according to the article, many of the participants, worldly writers and scholars, seemed mystified by Levi’s suicide, mystified and disappointed. It was as if this man whom they had all so greatly admired, and who had endured so much at the hands of the Nazis — a man of exemplary resilience and courage — had by his suicide demonstrated a frailty, a crumbling of character they were loath to accept. In the face of a terrible absolute — self-destruction — their reaction was helplessness and (the reader could not avoid it) a touch of shame.
My annoyance over all this was so intense that I was prompted to write a short piece for the op-ed page of the Times. The argument I put forth was fairly straightforward: the pain of severe depression is quite unimaginable to those who have not suffered it, and it kills in many instances because its anguish can no longer be borne. The prevention of many suicides will continue to be hindered until there is a general awareness of the nature of this pain. Through the healing process of time — and through medical intervention or hospitalization in many cases — most people survive depression, which may be its only blessing; but to the tragic legion who are compelled to destroy themselves there should be no more reproof attached than to the victims of terminal cancer.

"The Horns of the Altar", pp. 237–238
Pilgrim at Tinker Creek (1976)

Source: Men Explain Things to Me

On what inspired him to go vegan, from an " Ask Me Anything" session on Reddit https://www.reddit.com/r/IAmA/comments/1x3ol1/i_am_musician_dj_photographer_and_director_moby/; as quoted in "Vegan Veteran Moby Reveals on Reddit Why He Eschews Eating Animals", in Ecorazzi (6 February 2014) http://www.ecorazzi.com/2014/02/06/vegan-veteran-moby-reveals-on-reddit-why-he-eschews-eating-animals/

Act I
The Title (1918)
Source: The Title: A Comedy in Three Acts

"On Relativistic Cosmology" (1928)

Quoted in Will Tuttle, The World Peace Diet, [//books.google.it/books?id=H_clxwd27CgC&pg=PT107 ch. 5]