Columbia subject headings:
Concept of freedom.
Kierkegaard, Søren, 1813-1855.
Liberty--History--19th century.
Harvard subject headings:
Kierkegaard, Søren, 1813-1855--Contributions in concept of freedom.
Liberty--History--19th century.
Princeton subject headings:
Kierkegaard, Søren, 1813-1855--Contributions in concept of freedom.
Liberty--Religious aspects--Christianity--History of doctrines--19th century.