Columbia subject headings:
Human behavior.
Thomas, Aquinas, Saint, 1225?-1274--Ethics.
Thomas, Aquinas, Saint, 1225?-1274.
Harvard subject headings:
Ethics, Medieval.
Thomas, Aquinas, Saint, 1225?-1274--Ethics.
Princeton subject headings:
Thomas, Aquinas, Saint, 1225?-1274--Ethics.
Thomas, Aquinas, Saint, 1225?-1274--Views on human behavior.