Evolution has taught them that pointless harm will ultimately harm themselves.
Parasite Rex: Inside the Bizarre World of Nature's Most Dangerous CreaturesFear not a jest. If one throws salt at thee thou wilt receive no harm unless thou hast sore places.
LatinGod does not remove us from all harm; He uses harm to move us close to Him.
Hunger No More: A 1-Year Devotional Journey Through the PsalmsI am grateful to realize that my desires do not entitle me to add to another's suffering.
Most Good, Least Harm: A Simple Principle for a Better World and Meaningful Life