[jkarni]

Thomas Aquinas believed cruelty to animals was wrong not because animals have souls (and with that all the standard moral rights), but because it can teach us cruelty to other humans.

[pfortuny]

Snarky morning: "spiritual souls" as opposed to "mere animal souls". Sorry, could not control myself.

[vixen99]

Spiritual or not, anyone watching cattle in an abatoir will recognize symptoms of the kind of foreboding that I would suffer prior to execution.