
" Speciesism https://books.google.it/books?id=Rz30CgAAQBAJ&pg=PT59" (1970). Reported in Speciesism, Painism and Happiness: A Morality for the Twenty-First Century by Richard D. Ryder (Exeter: Imprint Academic, 2011), Chapter 2.
"Can We Truly Know Sloth and Rapacity?" pp. 389
Leonardo's Mountain of Clams and the Diet of Worms (1998)
" Speciesism https://books.google.it/books?id=Rz30CgAAQBAJ&pg=PT59" (1970). Reported in Speciesism, Painism and Happiness: A Morality for the Twenty-First Century by Richard D. Ryder (Exeter: Imprint Academic, 2011), Chapter 2.
Source: Eternal Treblinka (2002), p. 109
Freedom for Über-Marionettes: What Science Won't Tell You (p. 151)
The Soul of the Marionette: A Short Enquiry into Human Freedom (2015)
Source: Titans of Chaos (2007), Chapter 6, “Six Score Leagues Northwest of Paradise” Section 4 (p. 75)