my part I rather wonder both by what accident and in what state of soul
or mind the first man [...] touched his mouth to gore and brought his
lips to the flesh of a dead creature, he who set forth tables of dead,
stale bodies and ventured to call food and nourishment the parts that
had little before bellowed and cried, moved and lived. How could his
eyes endure the slaughter when throats were slit and hides flayed and
limbs torn from limb? How could his nose endure the stench? How was it
that the pollution did not turn away his taste, which made contact with
the sores of others and sucked juices and serums from mortal wounds?
[...] We slaughter harmless, tame creatures without stings or teeth to
harm us, creatures that, I swear, Nature appears to have produced for
the sake of their beauty and grace. [...] For the sake of a little flesh
we deprive them of sun, of light, of the duration of life to which they
are entitled by birth and being.
-- Plutarch, Moralia