Columbia subject headings:
Folly--Religious aspects--Catholic Church.
Folly--Religious aspects--Orthodox Eastern Church.
Spiritual life--Christianity--History of doctrines.
Harvard subject headings:
Folly--Religious aspects--Catholic Church.
Folly--Religious aspects--Orthodox Eastern Church.
Folly.
Holy fools.
Spiritual life--Catholic Church--History of doctrines.
Spiritual life--Christianity--History of doctrines
Spiritual life--Orthodox Eastern Church--History of doctrines.
Princeton subject headings:
Folly.
Spiritual life--Christianity--History of doctrines.