Columbia subject headings:
Bloch, Ernst, 1885-1977.
Habermas, Jürgen.
Ontology.
Philosophy, Modern--20th century.
Teleology.
Harvard subject headings:
Bloch, Ernst, 1885-1977
Habermas, Jürgen
Princeton subject headings:
Bloch, Ernst, 1885-1977.
Habermas, Jürgen.
Ontology.
Philosophy, Modern--20th century.
Teleology.