It's because we don't think rocks can suffer. And if we're more concerned about our fellow primates than we are about insects, as indeed we are, it's because we think they're exposed to a greater range of potential happiness and suffering.
Zato što mislimo kako stjene ne mogu patiti. A ako smo više zabrinuti za drage nam primate nego što smo za insekte, kao što i jesmo, to je zato što mislimo kako su oni izloženi većem rasponu potencijalne sreće i patnje.