natural moral law- hierarchy of souls
Aquinas adopted Aristotle’s hierarchy of the souls.
Plants- Vegetative: Nutrition and growth
Animals- Sensitive: ^ Movement · Sense perception (low-level) thought
Humans- Rational: ^^ · Reason
the ability of animals to have sense perception and to move means that they are able to make use of plants as a food supply for nutrition and growth. humans, at the top of this hierarchy, have the same right in relation to animals. Animals were created, in Aquinas’ view, for any use to which humans choose to put them.