585. What do you think of the splitting of the natural world into three kingdoms, or even two classes of inorganic and organic beings? Some add the human species as a fourth class. Which of these divisions is preferable?
“They are all sound, depending upon your point of view. From a material perspective, they are only inorganic and organic beings, while from the moral perspective, there are four levels.”
Clear features distinguish these four levels, although their extremes seem to blend into each other:
Inert matter, makes up the mineral kingdom possesses mechanical force only;
Plant made up of inert matter, are endowed with life;
Animals made up of inert matter as well are endowed with life, and have a limited instinctive intelligence that gives them the consciousness of their existence and individuality;
Lastly, human beings, possessing all that is found in plants and animals, are above all the other classes due to unlimited superior intelligence that makes them aware of their future, the perception of things that are beyond the physical realm, and the knowledge of God.