Columbia subject headings:
Aristotle--Influence.
Happiness--Philosophy.
Philosophy and religion.
Thomas, Aquinas, Saint, 1225?-1274.
Harvard subject headings:
Aristotle--Influence.
Happiness--Philosophy.
Philosophy and religion.
Thomas, Aquinas, Saint, 1225?-1274
Princeton subject headings:
Aristotle--Influence.
Happiness--Philosophy.
Philosophy and religion.
Thomas, Aquinas, Saint, 1225?-1274.